28 Apr, 2008
33 commits
-
Add platform code to support Freescale DIU. The platform code includes
framebuffer memory allocation, pixel format, monitor port, etc.Signed-off-by: York Sun
Signed-off-by: Timur Tabi
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The following features are supported:
plane 0 works as a regular frame buffer, can be accessed by /dev/fb0
plane 1 has two AOIs (area of interest), can be accessed by /dev/fb1 and /dev/fb2
plane 2 has two AOIs, can be accessed by /dev/fb3 and /dev/fb4
Special ioctls support AOIsAll /dev/fb* can be used as regular frame buffer devices, except hardware
change can only be made through /dev/fb0. Changing pixel clock has no effect
on other fbs.Limitation of usage of AOIs:
AOIs on the same plane can not be horizonally overlapped
AOIs have horizonal order, i.e. AOI0 should be always on top of AOI1
AOIs can not beyond phisical display area. Application should check AOI geometry
before changing physical resolution on /dev/fb0required command line parameters to preallocate memory for frame buffer diufb.
optional command line parameters to set modes and monitor
video=fslfb:[resolution][,bpp][,monitor]
Syntax:Resolution
xres x yres-bpp@refresh_rate, the -bpp and @refresh_rate are optional
eg, 1024x768, 1280x1024, 1280x1024-32, 1280x1024@60, 1280x1024-32@60, 1280x480-32@60Bpp
bpp=32, bpp=24, or bpp=16Monitor
monitor=0, monitor=1, monitor=2
0 is DVI
1 is Single link LVDS
2 is Double link LVDSNote: switching monitor is a board feather, not DIU feather. MPC8610HPCD has three
monitor ports to swtich to. MPC5121ADS doesn't have additional monitor port. So switching
monirot port for MPC5121ADS has no effect.If compiled as a module, it takes pamameters mode, bpp, monitor with the same syntax above.
Signed-off-by: York Sun
Signed-off-by: Timur Tabi
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If the user specified a fixed framebuffer address on the command line, it may
have been initialized already with a splash image or something, so we
shouldn't clear it.Therefore, we should only initialize the framebuffer if we allocated it
ourselves. This patch also updates the AVR32 setup code to clear the
framebuffer if it allocated it itself, i.e. the user didn't provide a fixed
address or the reservation failed.I've updated the at91 platform code as well so that it initializes the
framebuffer if it is located in SRAM, but I haven't tested that it actually
works.Signed-off-by: Haavard Skinnemoen
Cc: "Antonino A. Daplas"
Cc: Nicolas FERRE
Cc: Andrew Victor
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This cleans up a few MSR-using drivers in the following manner:
- Ensures MSRs are all defined in asm/geode.h, rather than in misc
places
- Makes the naming consistent; cs553[56] ones begin with MSR_,
GX-specific ones start with MSR_GX_, and LX-specific ones start
with MSR_LX_. Also, make the names match the data sheet.
- Use MSR names rather than numbers in source code
- Document the fact that the LX's MSR_PADSEL has the wrong value
in the data sheet. That's, uh, good to note.Signed-off-by: Andres Salomon
Acked-by: Jordan Crouse
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Turn CONFIG_DMI into a selectable option if EMBEDDED is defined, in
order to be able to remove the DMI table scanning code if it's not
needed, and then reduce the kernel code size.With CONFIG_DMI (i.e before) :
text data bss dec hex filename
1076076 128656 98304 1303036 13e1fc vmlinuxWithout CONFIG_DMI (i.e after) :
text data bss dec hex filename
1068092 126308 98304 1292704 13b9a0 vmlinuxResult:
text data bss dec hex filename
-7984 -2348 0 -10332 -285c vmlinuxThe new option appears in "Processor type and features", only when
CONFIG_EMBEDDED is defined.This patch is part of the Linux Tiny project, and is based on previous work
done by Matt Mackall .Signed-off-by: Thomas Petazzoni
Acked-by: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Anvin"
Signed-off-by: Matt Mackall
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add VR41xx SIU setup for serial console.
Signed-off-by: Yoichi Yuasa
Cc: Ralf Baechle
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make some global functions and variables static.
And remove some useless declarations for local functions, since we just need
to move their definitions ahead.[jdike@addtoit.com: checkpatch cleanups]
Signed-off-by: WANG Cong
Signed-off-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Improve this code a bit: check sigaction's return value and remove a useless
fflush().Acked-by: Jeff Dike
Signed-off-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make several things static, because they no longer need to be global.
Acked-by: Jeff Dike
Signed-off-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make the following three functions static, since they don't need to be global.
arch/um/drivers/mcast_kern.c::mcast_setup()
arch/um/drivers/mconsole_user.c::mconsole_reply_v0()
arch/um/drivers/port_user.c::port_pre_exec()Acked-by: Jeff Dike
Signed-off-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
arch/um/drivers/chan_kern.c::chan_out_fd() is not used by anyone. Remove it.
Acked-by: Jeff Dike
Signed-off-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
arch/um/drivers/chan_kern.c::open_chan() can become static.
Acked-by: Jeff Dike
Signed-off-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- lets ptrace_child become void
- adds checking for the return value of change_sig
- moves errors info into stderr instead of stdout.Cc: Jeff Dike
Signed-off-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison
Cc: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make some small improvements for arch/um/kernel/um_arch.c.
Signed-off-by: WANG Cong
Acked-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
show_mem() has no need to print the amount of free swap space manually because
show_free_areas() does this already and is called by the former.The two outputs only differ in text formatting:
printk("Free swap = %lukB\n", ...);
printk("Free swap: %6ldkB\n", ...);Signed-off-by: Johannes Weiner
Cc: Mikael Starvik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison
Cc: Geert Uytterhoeven
Cc: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
show_mem() has no need to print the amount of free swap space manually because
show_free_areas() does this already and is called by the former.The two outputs only differ in text formatting:
printk("Free swap = %lukB\n", ...);
printk("Free swap: %6ldkB\n", ...);Signed-off-by: Johannes Weiner
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The functions time_before, time_before_eq, time_after, and time_after_eq are
more robust for comparing jiffies against other values.So implement usage of the time_after() macro, defined in linux/jiffies.h,
which deals with wrapping correctly[akpm@linux-foundation.org: fix warning]
Signed-off-by: S.Caglar Onur
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
__FUNCTION__ is gcc-specific, use __func__
The change in pci-iommu,c should be safe as arena has not been assigned
when we get to this point.Some were within #if 0 blocks, have changed them and left the blocks
as they appear to be debugging infrastructure.A #define FN __FUNCTION__ was removed and occurances of FN were replaced
with __func__ as well.Signed-off-by: Harvey Harrison
Cc: Ivan Kokshaysky
Cc: Richard Henderson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
arch/alpha/kernel/module.c (module_frob_arch_sections): Handle kcalloc failure.
Signed-off-by: Jim Meyering
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Alter the block device ->direct_access() API to work with the new
get_xip_mem() API (that requires both kaddr and pfn are returned).Some architectures will not do the right thing in their virt_to_page() for use
by XIP (to translate from the kernel virtual address returned by
direct_access(), to a user mappable pfn in XIP's page fault handler.However, we can't switch it to just return the pfn and not the kaddr, because
we have no good way to get a kva from a pfn, and XIP requires the kva for its
read(2) and write(2) handlers. So we have to return both.Signed-off-by: Jared Hulbert
Signed-off-by: Nick Piggin
Cc: Carsten Otte
Cc: Heiko Carstens
Cc: linux-mm@kvack.org
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Xen uses bitops to manipulate page flags. Make it use proper page flag
functions.Signed-off-by: Christoph Lameter
Cc: Andy Whitcroft
Cc: KAMEZAWA Hiroyuki
Cc: KOSAKI Motohiro
Cc: Rik van Riel
Cc: Mel Gorman
Cc: Jeremy Fitzhardinge
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
NR_PAGEFLAGS specifies the number of page flags we are using. From that we
can calculate the number of bits leftover that can be used for zone, node (and
maybe the sections id). There is no need anymore for FLAGS_RESERVED if we use
NR_PAGEFLAGS.Use the new methods to make NR_PAGEFLAGS available via the preprocessor.
NR_PAGEFLAGS is used to calculate field boundaries in the page flags fields.
These field widths have to be available to the preprocessor.Signed-off-by: Christoph Lameter
Cc: David Miller
Cc: Andy Whitcroft
Cc: KAMEZAWA Hiroyuki
Cc: KOSAKI Motohiro
Cc: Rik van Riel
Cc: Mel Gorman
Cc: Jeremy Fitzhardinge
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add the ability to pass comments into asm-offsets.h by generating asm
output like-># comment line
Mips needs this feature to preserve the comments that are in
asm-mips/asm-offsets.h right now.Then remove the special handling for mips from Kbuild and convert mips to use
the new string to include the comments.Cc: Ralf Baechle
Signed-off-by: Christoph Lameter
Cc: Sam Ravnborg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add caller information so that /proc/vmallocinfo shows where the allocation
request for a slice of vmalloc memory originated.Results in output like this:
0xffffc20000000000-0xffffc20000801000 8392704 alloc_large_system_hash+0x127/0x246 pages=2048 vmalloc vpages
0xffffc20000801000-0xffffc20000806000 20480 alloc_large_system_hash+0x127/0x246 pages=4 vmalloc
0xffffc20000806000-0xffffc20000c07000 4198400 alloc_large_system_hash+0x127/0x246 pages=1024 vmalloc vpages
0xffffc20000c07000-0xffffc20000c0a000 12288 alloc_large_system_hash+0x127/0x246 pages=2 vmalloc
0xffffc20000c0a000-0xffffc20000c0c000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap
0xffffc20000c0c000-0xffffc20000c0f000 12288 acpi_os_map_memory+0x13/0x1c phys=cff64000 ioremap
0xffffc20000c10000-0xffffc20000c15000 20480 acpi_os_map_memory+0x13/0x1c phys=cff65000 ioremap
0xffffc20000c16000-0xffffc20000c18000 8192 acpi_os_map_memory+0x13/0x1c phys=cff69000 ioremap
0xffffc20000c18000-0xffffc20000c1a000 8192 acpi_os_map_memory+0x13/0x1c phys=fed1f000 ioremap
0xffffc20000c1a000-0xffffc20000c1c000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap
0xffffc20000c1c000-0xffffc20000c1e000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap
0xffffc20000c1e000-0xffffc20000c20000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap
0xffffc20000c20000-0xffffc20000c22000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap
0xffffc20000c22000-0xffffc20000c24000 8192 acpi_os_map_memory+0x13/0x1c phys=cff68000 ioremap
0xffffc20000c24000-0xffffc20000c26000 8192 acpi_os_map_memory+0x13/0x1c phys=e0081000 ioremap
0xffffc20000c26000-0xffffc20000c28000 8192 acpi_os_map_memory+0x13/0x1c phys=e0080000 ioremap
0xffffc20000c28000-0xffffc20000c2d000 20480 alloc_large_system_hash+0x127/0x246 pages=4 vmalloc
0xffffc20000c2d000-0xffffc20000c31000 16384 tcp_init+0xd5/0x31c pages=3 vmalloc
0xffffc20000c31000-0xffffc20000c34000 12288 alloc_large_system_hash+0x127/0x246 pages=2 vmalloc
0xffffc20000c34000-0xffffc20000c36000 8192 init_vdso_vars+0xde/0x1f1
0xffffc20000c36000-0xffffc20000c38000 8192 pci_iomap+0x8a/0xb4 phys=d8e00000 ioremap
0xffffc20000c38000-0xffffc20000c3a000 8192 usb_hcd_pci_probe+0x139/0x295 [usbcore] phys=d8e00000 ioremap
0xffffc20000c3a000-0xffffc20000c3e000 16384 sys_swapon+0x509/0xa15 pages=3 vmalloc
0xffffc20000c40000-0xffffc20000c61000 135168 e1000_probe+0x1c4/0xa32 phys=d8a20000 ioremap
0xffffc20000c61000-0xffffc20000c6a000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc20000c6a000-0xffffc20000c73000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc20000c73000-0xffffc20000c7c000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc20000c7c000-0xffffc20000c7f000 12288 e1000e_setup_tx_resources+0x29/0xbe pages=2 vmalloc
0xffffc20000c80000-0xffffc20001481000 8392704 pci_mmcfg_arch_init+0x90/0x118 phys=e0000000 ioremap
0xffffc20001481000-0xffffc20001682000 2101248 alloc_large_system_hash+0x127/0x246 pages=512 vmalloc
0xffffc20001682000-0xffffc20001e83000 8392704 alloc_large_system_hash+0x127/0x246 pages=2048 vmalloc vpages
0xffffc20001e83000-0xffffc20002204000 3674112 alloc_large_system_hash+0x127/0x246 pages=896 vmalloc vpages
0xffffc20002204000-0xffffc2000220d000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc2000220d000-0xffffc20002216000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc20002216000-0xffffc2000221f000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc2000221f000-0xffffc20002228000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc20002228000-0xffffc20002231000 36864 _xfs_buf_map_pages+0x8e/0xc0 vmap
0xffffc20002231000-0xffffc20002234000 12288 e1000e_setup_rx_resources+0x35/0x122 pages=2 vmalloc
0xffffc20002240000-0xffffc20002261000 135168 e1000_probe+0x1c4/0xa32 phys=d8a60000 ioremap
0xffffc20002261000-0xffffc2000270c000 4894720 sys_swapon+0x509/0xa15 pages=1194 vmalloc vpages
0xffffffffa0000000-0xffffffffa0022000 139264 module_alloc+0x4f/0x55 pages=33 vmalloc
0xffffffffa0022000-0xffffffffa0029000 28672 module_alloc+0x4f/0x55 pages=6 vmalloc
0xffffffffa002b000-0xffffffffa0034000 36864 module_alloc+0x4f/0x55 pages=8 vmalloc
0xffffffffa0034000-0xffffffffa003d000 36864 module_alloc+0x4f/0x55 pages=8 vmalloc
0xffffffffa003d000-0xffffffffa0049000 49152 module_alloc+0x4f/0x55 pages=11 vmalloc
0xffffffffa0049000-0xffffffffa0050000 28672 module_alloc+0x4f/0x55 pages=6 vmalloc[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Christoph Lameter
Reviewed-by: KOSAKI Motohiro
Cc: Hugh Dickins
Cc: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Not all architectures define cache_line_size() so as suggested by Andrew move
the private implementations in mm/slab.c and mm/slob.c to .Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: H. Peter Anvin
Reviewed-by: Christoph Lameter
Signed-off-by: Pekka Enberg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Filtering zonelists requires very frequent use of zone_idx(). This is costly
as it involves a lookup of another structure and a substraction operation. As
the zone_idx is often required, it should be quickly accessible. The node idx
could also be stored here if it was found that accessing zone->node is
significant which may be the case on workloads where nodemasks are heavily
used.This patch introduces a struct zoneref to store a zone pointer and a zone
index. The zonelist then consists of an array of these struct zonerefs which
are looked up as necessary. Helpers are given for accessing the zone index as
well as the node index.[kamezawa.hiroyu@jp.fujitsu.com: Suggested struct zoneref instead of embedding information in pointers]
[hugh@veritas.com: mm-have-zonelist: fix memcg ooms]
[hugh@veritas.com: just return do_try_to_free_pages]
[hugh@veritas.com: do_try_to_free_pages gfp_mask redundant]
Signed-off-by: Mel Gorman
Acked-by: Christoph Lameter
Acked-by: David Rientjes
Signed-off-by: Lee Schermerhorn
Cc: KAMEZAWA Hiroyuki
Cc: Mel Gorman
Cc: Christoph Lameter
Cc: Nick Piggin
Signed-off-by: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently a node has two sets of zonelists, one for each zone type in the
system and a second set for GFP_THISNODE allocations. Based on the zones
allowed by a gfp mask, one of these zonelists is selected. All of these
zonelists consume memory and occupy cache lines.This patch replaces the multiple zonelists per-node with two zonelists. The
first contains all populated zones in the system, ordered by distance, for
fallback allocations when the target/preferred node has no free pages. The
second contains all populated zones in the node suitable for GFP_THISNODE
allocations.An iterator macro is introduced called for_each_zone_zonelist() that interates
through each zone allowed by the GFP flags in the selected zonelist.Signed-off-by: Mel Gorman
Acked-by: Christoph Lameter
Signed-off-by: Lee Schermerhorn
Cc: KAMEZAWA Hiroyuki
Cc: Mel Gorman
Cc: Christoph Lameter
Cc: Hugh Dickins
Cc: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
All architectures use an effectively identical definition of online_page(), so
just make it common code. x86-64, ia64, powerpc and sh are actually
identical; x86-32 is slightly different.x86-32's differences arise because it puts its hotplug pages in the highmem
zone. We can handle this in the generic code by inspecting the page to see if
its in highmem, and update the totalhigh_pages count appropriately. This
leaves init_32.c:free_new_highpage with a single caller, so I folded it into
add_one_highpage_init.I also removed an incorrect comment referring to the NUMA case; any NUMA
details have already been dealt with by the time online_page() is called.[akpm@linux-foundation.org: fix indenting]
Signed-off-by: Jeremy Fitzhardinge
Acked-by: Dave Hansen
Reviewed-by: KAMEZAWA Hiroyuki
Tested-by: KAMEZAWA Hiroyuki
Cc: Yasunori Goto
Cc: Christoph Lameter
Acked-by: Ingo Molnar
Acked-by: Yasunori Goto
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adrian Bunk noticed the following Coverity report:
> Commit e7f260a276f2c9184fe753732d834b1f6fbe9f17
> (x86: PAT use reserve free memtype in mmap of /dev/mem)
> added the following gem to arch/x86/mm/pat.c:
>
>
>
> ...
> int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
> unsigned long size, pgprot_t *vma_prot)
> {
> u64 offset = ((u64) pfn) << PAGE_SHIFT;
> unsigned long flags = _PAGE_CACHE_UC_MINUS;
> unsigned long ret_flags;
> ...
> ... (nothing that touches ret_flags)
> ...
> if (flags != _PAGE_CACHE_UC_MINUS) {
> retval = reserve_memtype(offset, offset + size, flags, NULL);
> } else {
> retval = reserve_memtype(offset, offset + size, -1, &ret_flags);
> }
>
> if (retval < 0)
> return 0;
>
> flags = ret_flags;
>
> if (pfn ioremap_change_attr((unsigned long)__va(offset), size, flags) < 0) {
> free_memtype(offset, offset + size);
> printk(KERN_INFO
> "%s:%d /dev/mem ioremap_change_attr failed %s for %Lx-%Lx\n",
> current->comm, current->pid,
> cattr_name(flags),
> offset, offset + size);
> return 0;
> }
>
> *vma_prot = __pgprot((pgprot_val(*vma_prot) & ~_PAGE_CACHE_MASK) |
> flags);
> return 1;
> }
>
>
>
> If (flags != _PAGE_CACHE_UC_MINUS) we pass garbage from the stack to
> ioremap_change_attr() and/or __pgprot().
>
> Spotted by the Coverity checker.the fix simplifies the code as we get rid of the 'ret_flags'
complication.Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
Ingo already fixed one of these at my request (in "x86 PAT: tone down
debugging messages", commit 1ebcc654f010d4a63f3ebf8ddd2cab5a709b1824),
but there was another one he missed.Signed-off-by: Linus Torvalds
-
* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (147 commits)
KVM: kill file->f_count abuse in kvm
KVM: MMU: kvm_pv_mmu_op should not take mmap_sem
KVM: SVM: remove selective CR0 comment
KVM: SVM: remove now obsolete FIXME comment
KVM: SVM: disable CR8 intercept when tpr is not masking interrupts
KVM: SVM: sync V_TPR with LAPIC.TPR if CR8 write intercept is disabled
KVM: export kvm_lapic_set_tpr() to modules
KVM: SVM: sync TPR value to V_TPR field in the VMCB
KVM: ppc: PowerPC 440 KVM implementation
KVM: Add MAINTAINERS entry for PowerPC KVM
KVM: ppc: Add DCR access information to struct kvm_run
ppc: Export tlb_44x_hwater for KVM
KVM: Rename debugfs_dir to kvm_debugfs_dir
KVM: x86 emulator: fix lea to really get the effective address
KVM: x86 emulator: fix smsw and lmsw with a memory operand
KVM: x86 emulator: initialize src.val and dst.val for register operands
KVM: SVM: force a new asid when initializing the vmcb
KVM: fix kvm_vcpu_kick vs __vcpu_run race
KVM: add ioctls to save/store mpstate
KVM: Rename VCPU_MP_STATE_* to KVM_MP_STATE_*
...
27 Apr, 2008
7 commits
-
kvm_pv_mmu_op should not take mmap_sem. All gfn_to_page() callers down
in the MMU processing will take it if necessary, so as it is it can
deadlock.Apparently a leftover from the days before slots_lock.
Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
There is not selective cr0 intercept bug. The code in the comment sets the
CR0.PG bit. But KVM sets the CR4.PG bit for SVM always to implement the paged
real mode. So the 'mov %eax,%cr0' instruction does not change the CR0.PG bit.
Selective CR0 intercepts only occur when a bit is actually changed. So its the
right behavior that there is no intercept on this instruction.Signed-off-by: Joerg Roedel
Signed-off-by: Avi Kivity -
With the usage of the V_TPR field this comment is now obsolete.
Signed-off-by: Joerg Roedel
Signed-off-by: Avi Kivity -
This patch disables the intercept of CR8 writes if the TPR is not masking
interrupts. This reduces the total number CR8 intercepts to below 1 percent of
what we have without this patch using Windows 64 bit guests.Signed-off-by: Joerg Roedel
Signed-off-by: Avi Kivity -
If the CR8 write intercept is disabled the V_TPR field of the VMCB needs to be
synced with the TPR field in the local apic.Signed-off-by: Joerg Roedel
Signed-off-by: Avi Kivity -
This patch exports the kvm_lapic_set_tpr() function from the lapic code to
modules. It is required in the kvm-amd module to optimize CR8 intercepts.Signed-off-by: Joerg Roedel
Signed-off-by: Avi Kivity -
This patch adds syncing of the lapic.tpr field to the V_TPR field of the VMCB.
With this change we can safely remove the CR8 read intercept.Signed-off-by: Joerg Roedel
Signed-off-by: Avi Kivity
