- 06 Sep, 2012 7 commits
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Gleb Natapov authored
Optimize "rep ins" by allowing emulator to write back more than one datum at a time. Introduce new operand type OP_MEM_STR which tells writeback() that dst contains pointer to an array that should be written back as opposite to just one data element. Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Gleb Natapov authored
Remove unneeded segment argument. Address structure already has correct segment which was put there during decode. Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Gleb Natapov authored
Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Gleb Natapov authored
Current code assumes that IO exit was due to instruction emulation and handles execution back to emulator directly. This patch adds new userspace IO exit completion callback that can be set by any other code that caused IO exit to userspace. Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Marcelo Tosatti authored
Other arches do not need this. Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> v2: fix incorrect deletion of mmio sptes on gpa move (noticed by Takuya) Signed-off-by:
Avi Kivity <avi@redhat.com>
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Marcelo Tosatti authored
PPC must flush all translations before the new memory slot is visible. Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Marcelo Tosatti authored
Introducing kvm_arch_flush_shadow_memslot, to invalidate the translations of a single memory slot. Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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- 05 Sep, 2012 8 commits
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Mathias Krause authored
We never modify direct_access_msrs[], msrpm_ranges[], svm_exit_handlers[] or x86_intercept_map[] at runtime. Mark them r/o. Signed-off-by:
Mathias Krause <minipli@googlemail.com> Cc: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Mathias Krause authored
We use vmcs_field_to_offset_table[], kvm_vmx_segment_fields[] and kvm_vmx_exit_handlers[] as lookup tables only -- make them r/o. Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Mathias Krause authored
Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Mathias Krause authored
We never change those, make them r/o. Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Mathias Krause authored
We never change emulate_ops[] at runtime so it should be r/o. Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Mathias Krause authored
The opcode tables never change at runtime, therefor mark them const. Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Mathias Krause authored
As the the compiler ensures that the memory operand is always aligned to a 16 byte memory location, use the aligned variant of MOVDQ for read_sse_reg() and write_sse_reg(). Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Mathias Krause authored
Some fields can be constified and/or made static to reduce code and data size. Numbers for a 32 bit build: text data bss dec hex filename before: 3351 80 0 3431 d67 cpuid.o after: 3391 0 0 3391 d3f cpuid.o Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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- 04 Sep, 2012 1 commit
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Gleb Natapov authored
kvm_pic_reset() is not used anywhere. Move reset logic from pic_ioport_write() there. Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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- 30 Aug, 2012 1 commit
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Marcelo Tosatti authored
Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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- 27 Aug, 2012 15 commits
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Avi Kivity authored
We will enter the guest with G and D cleared; as real hardware ignores D in real mode, and G is taken care of by the limit test, we allow more code to run in vm86 mode. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
While this is undocumented, real processors do not reload the segment limit and access rights when loading a segment register in real mode. Real programs rely on it so we need to comply with this behaviour. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
emulate_invalid_guest_state=1 doesn't mean we don't munge the segments in the vmcs; we do. So we need to return the real ones (maintained by vmx_set_segment). Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
We want the segment selector, nor segment number. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Segment limits are verified in real mode, not just protected mode. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
When loading a segment in real mode, only the base and selector must be modified. The limit needs to be left alone, otherwise big real mode users will hit a #GP due to limit checking (currently this is suppressed because we don't check limits in real mode). Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Usually, big real mode uses large (4GB) segments. Currently we don't virtualize this; if any segment has a limit other than 0xffff, we emulate. But if we set the vmx-visible limit to 0xffff, we can use vm86 to virtualize real mode; if an access overruns the segment limit, the guest will #GP, which we will trap and forward to the emulator. This results in significantly faster execution, and less risk of hitting an unemulated instruction. If the limit is less than 0xffff, we retain the existing behaviour. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Real mode is always entered from protected mode with dpl=0. Since the dpl doesn't affect execution, and we already override it to 3 in the vmcs (as vmx requires), we can allow execution in that state. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Real processors don't change segment limits and attributes while in real mode. Mimic that behaviour. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Instead of using struct kvm_save_segment, use struct kvm_segment, which is what the other APIs use. This leads to some simplification. We replace save_rmode_seg() with a call to vmx_save_segment(). Since this depends on rmode.vm86_active, we move the call to before setting the flag. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
fix_pmode_dataseg() looks up S in ->base instead of ->ar_bytes. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Commit b246dd5d ("KVM: VMX: Fix KVM_SET_SREGS with big real mode segments") moved fix_rmode_seg() to vmx_set_segment(), so that it is applied not just on transitions to real mode, but also on KVM_SET_SREGS (migration). However fix_rmode_seg() not only munges the vmcs segments, it also sets up the save area for us to restore when returning to protected mode or to return in vmx_get_segment(). Move saving the segment into a new function, save_rmode_seg(), and call it just during the transition. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
Instead of populating the entire register file, read in registers as they are accessed, and write back only the modified ones. This saves a VMREAD and VMWRITE on Intel (for rsp, since it is not usually used during emulation), and a two 128-byte copies for the registers. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Gavin Shan authored
The build error was caused by that builtin functions are calling the functions implemented in modules. This error was introduced by commit 4d8b81ab ("KVM: introduce readonly memslot"). The patch fixes the build error by moving function __gfn_to_hva_memslot() from kvm_main.c to kvm_host.h and making that "inline" so that the builtin function (kvmppc_h_enter) can use that. Acked-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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- 26 Aug, 2012 5 commits
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Marcelo Tosatti authored
Merging critical fixes from upstream required for development. * upstream/master: (809 commits) libata: Add a space to " 2GB ATA Flash Disk" DMA blacklist entry Revert "powerpc: Update g5_defconfig" powerpc/perf: Use pmc_overflow() to detect rolled back events powerpc: Fix VMX in interrupt check in POWER7 copy loops powerpc: POWER7 copy_to_user/copy_from_user patch applied twice powerpc: Fix personality handling in ppc64_personality() powerpc/dma-iommu: Fix IOMMU window check powerpc: Remove unnecessary ifdefs powerpc/kgdb: Restore current_thread_info properly powerpc/kgdb: Bail out of KGDB when we've been triggered powerpc/kgdb: Do not set kgdb_single_step on ppc powerpc/mpic_msgr: Add missing includes powerpc: Fix null pointer deref in perf hardware breakpoints powerpc: Fixup whitespace in xmon powerpc: Fix xmon dl command for new printk implementation xfs: check for possible overflow in xfs_ioc_trim xfs: unlock the AGI buffer when looping in xfs_dialloc xfs: fix uninitialised variable in xfs_rtbuf_get() powerpc/fsl: fix "Failed to mount /dev: No such device" errors powerpc/fsl: update defconfigs ... Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull arm-soc fixes from Arnd Bergmann: "Bug fixes for various ARM platforms. About half of these are for OMAP and submitted before but did not make it into v3.6-rc2." * tag 'fixes-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: ux500: don't select LEDS_GPIO for snowball ARM: imx: build i.MX6 functions only when needed ARM: imx: select CPU_FREQ_TABLE when needed ARM: imx: fix ksz9021rn_phy_fixup ARM: imx: build pm-imx5 code only when PM is enabled ARM: omap: allow building omap44xx without SMP ARM: dts: imx51-babbage: fix esdhc cd/wp properties ARM: imx6: spin the cpu until hardware takes it down ARM: ux500: Ensure probing of Audio devices when Device Tree is enabled ARM: ux500: Fix merge error, no matching driver name for 'snd_soc_u8500' ARM i.MX6q: Add virtual 1/3.5 dividers in the LDB clock path ARM: Kirkwood: fix Makefile.boot ARM: Kirkwood: Fix iconnect leds ARM: Orion: Set eth packet size csum offload limit ARM: mv78xx0: fix win_cfg_base prototype ARM: OMAP: dmtimers: Fix locking issue in omap_dm_timer_request*() ARM: mmp: fix potential NULL dereference ARM: OMAP4: Register the OPP table only for 4430 device cpufreq: OMAP: Handle missing frequency table on SMP systems ARM: OMAP4: sleep: Save the complete used register stack frame ...
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Linus Torvalds authored
Merge tag 'stable/for-linus-3.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull three xen bug-fixes from Konrad Rzeszutek Wilk: - Revert the kexec fix which caused on non-kexec shutdowns a race. - Reuse existing P2M leafs - instead of requiring to allocate a large area of bootup virtual address estate. - Fix a one-off error when adding PFNs for balloon pages. * tag 'stable/for-linus-3.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/setup: Fix one-off error when adding for-balloon PFNs to the P2M. xen/p2m: Reuse existing P2M leafs if they are filled with 1:1 PFNs or INVALID. Revert "xen PVonHVM: move shared_info to MMIO before kexec"
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
Pull powerpc fixes from Benjamin Herrenschmidt: "I meant to sent that earlier but got swamped with other things, so here are some powerpc fixes for 3.6. A few regression fixes and some bug fixes that I deemed should still make it. There's a FSL update from Kumar with a bunch of defconfig updates along with a few embedded fixes. I also reverted my g5_defconfig update that I merged earlier as it was completely busted, not too sure what happened there, I'll do a new one later." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: Revert "powerpc: Update g5_defconfig" powerpc/perf: Use pmc_overflow() to detect rolled back events powerpc: Fix VMX in interrupt check in POWER7 copy loops powerpc: POWER7 copy_to_user/copy_from_user patch applied twice powerpc: Fix personality handling in ppc64_personality() powerpc/dma-iommu: Fix IOMMU window check powerpc: Remove unnecessary ifdefs powerpc/kgdb: Restore current_thread_info properly powerpc/kgdb: Bail out of KGDB when we've been triggered powerpc/kgdb: Do not set kgdb_single_step on ppc powerpc/mpic_msgr: Add missing includes powerpc: Fix null pointer deref in perf hardware breakpoints powerpc: Fixup whitespace in xmon powerpc: Fix xmon dl command for new printk implementation powerpc/fsl: fix "Failed to mount /dev: No such device" errors powerpc/fsl: update defconfigs booke/wdt: some ioctls do not return values properly powerpc/p4080ds: dts - add usb controller version info and port0 powerpc/85xx: mpc85xx_defconfig - add VIA PATA support for MPC85xxCDS powerpc/fsl-pci: Only scan PCI bus if configured as a host
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm fixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86 emulator: use stack size attribute to mask rsp in stack ops KVM: MMU: Fix mmu_shrink() so that it can free mmu pages as intended ppc: e500_tlb memset clears nothing KVM: PPC: Add cache flush on page map KVM: PPC: Book3S HV: Fix incorrect branch in H_CEDE code KVM: x86: update KVM_SAVE_MSRS_BEGIN to correct value
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- 25 Aug, 2012 3 commits
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git://oss.sgi.com/xfs/xfsLinus Torvalds authored
Pull xfs bugfixes from Ben Myers: - fix uninitialised variable in xfs_rtbuf_get() - unlock the AGI buffer when looping in xfs_dialloc - check for possible overflow in xfs_ioc_trim * tag 'for-linus-v3.6-rc4' of git://oss.sgi.com/xfs/xfs: xfs: check for possible overflow in xfs_ioc_trim xfs: unlock the AGI buffer when looping in xfs_dialloc xfs: fix uninitialised variable in xfs_rtbuf_get()
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS fixes from Ralf Baechle: "Random fixes across the MIPS tree. The two hotspots are several bugs in the module loader and the ath79 SOC support; also noteworthy is the restructuring of the code to synchronize CPU timers across CPUs on startup; the old code recently ceased to work due to unrelated changes. All except one of these patches have sat for a significant time in linux-next for testing." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: pci-ar724x: avoid data bus error due to a missing PCIe module MIPS: Malta: Delete duplicate PCI fixup. MIPS: ath79: don't hardcode the unavailability of the DSP ASE MIPS: Synchronize MIPS count one CPU at a time MIPS: BCM63xx: Fix SPI message control register handling for BCM6338/6348. MIPS: Module: Deal with malformed HI16/LO16 relocation sequences. MIPS: Fix race condition in module relocation code. MIPS: Fix memory leak in error path of HI16/LO16 relocation handling. MIPS: MTX-1: Add udelay to mtx1_pci_idsel MIPS: ath79: select HAVE_CLK MIPS: ath79: Use correct IRQ number for the OHCI controller on AR7240 MIPS: ath79: Fix number of GPIO lines for AR724[12] MIPS: Octeon: Fix broken interrupt controller code.
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git://linux-nfs.org/~bfields/linuxLinus Torvalds authored
Pull nfsd bugfixes from J. Bruce Fields: "Particular thanks to Michael Tokarev, Malahal Naineni, and Jamie Heilman for their testing and debugging help." * 'for-3.6' of git://linux-nfs.org/~bfields/linux: svcrpc: fix svc_xprt_enqueue/svc_recv busy-looping svcrpc: sends on closed socket should stop immediately svcrpc: fix BUG() in svc_tcp_clear_pages nfsd4: fix security flavor of NFSv4.0 callback
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