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| * KVM: x86 emulator: move x86_decode_insn() downwardsAvi Kivity2010-10-24
| | | | | | | | | | | | | | No code changes. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: allow storing emulator execution function in decode tablesAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | Instead of looking up the opcode twice (once for decode flags, once for the big execution switch) look up both flags and function in the decode tables. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: store x86_emulate_ops in emulation contextAvi Kivity2010-10-24
| | | | | | | | | | | | | | It doesn't ever change, so we don't need to pass it around everywhere. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: move ByteOp and Dst back to bits 0:3Avi Kivity2010-10-24
| | | | | | | | | | | | | | Now that the group index no longer exists, the space is free. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: drop support for old-style groupsAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 9 to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 8 to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 7 to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 5 to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 4 to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 3 to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 1A to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: convert group 1 to new styleAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: allow specifying group directly in opcodeAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | Instead of having a group number, store the group table pointer directly in the opcode. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: reserve group code 0Avi Kivity2010-10-24
| | | | | | | | | | | | | | We'll be using that to distinguish between new-style and old-style groups. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: move group tables to topAvi Kivity2010-10-24
| | | | | | | | | | | | | | No code changes. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: Add wrappers for easily defining opcodesAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | | | Once 'struct opcode' grows, its initializer will become more complicated. Wrap the simple initializers in a D() macro, and replace the empty initializers with an even simpler N macro. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: introduce 'struct opcode'Avi Kivity2010-10-24
| | | | | | | | | | | | | | | | This will hold all the information known about the opcode. Currently, this is just the decode flags. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: drop parentheses in repreat macrosAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | The parenthese make is impossible to use the macros with initializers that require braces. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: Add IRET instructionMohammed Gamal2010-10-24
| | | | | | | | | | | | | | | | | | | | Ths patch adds IRET instruction (opcode 0xcf). Currently, only IRET in real mode is emulated. Protected mode support is to be added later if needed. Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Reviewed-by: Avi Kivity <avi@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: SVM: Emulate next_rip svm featureJoerg Roedel2010-10-24
| | | | | | | | | | | | | | | | This patch implements the emulations of the svm next_rip feature in the nested svm implementation in kvm. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: SVM: Sync efer back into nested vmcbJoerg Roedel2010-10-24
| | | | | | | | | | | | | | | | | | | | This patch fixes a bug in a nested hypervisor that heavily switches between real-mode and long-mode. The problem is fixed by syncing back efer into the guest vmcb on emulated vmexit. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: MMU: remove valueless output messageXiao Guangrong2010-10-24
| | | | | | | | | | | | | | | | | | After commit 53383eaad08d, the '*spte' has updated before call rmap_remove()(in most case it's 'shadow_trap_nonpresent_pte'), so remove this information from error message Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: VMX: Use host_gdt variable wherever we need the host gdtAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | Now that we have the host gdt conveniently stored in a variable, make use of it instead of querying the cpu. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: unify the two Group 3 variantsAvi Kivity2010-10-24
| | | | | | | | | | | | | | Use just one group table for byte (F6) and word (F7) opcodes. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: Allow LOCK prefix for NEG and NOTAvi Kivity2010-10-24
| | | | | | | | | | | | | | Opcodes F6/2, F6/3, F7/2, F7/3. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: simplify Group 1 decodingAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | | | Move operand decoding to the opcode table, keep lock decoding in the group table. This allows us to get consolidate the four variants of Group 1 into one group. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: mix decode bits from opcode and group decode tablesAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | | | Allow bits that are common to all members of a group to be specified in the opcode table instead of the group table. This allows some simplification of the decode tables. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: add Undefined decode flagAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | Add a decode flag to indicate the instruction is invalid. Will come in useful later, when we mix decode bits from the opcode and group table. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: Make group storage bits separate from operand bitsAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | | | | | Currently group bits are stored in bits 0:7, where operand bits are stored. Make group bits be 0:3, and move the existing bits 0:3 to 16:19, so we can mix group and operand bits. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: consolidate Jcc rel32 decodingAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: consolidate CMOVcc decodingAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: consolidate MOV reg, imm decodingAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: consolidate Jcc rel8 decodingAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: consolidate push/pop reg decodingAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: consolidate inc/dec reg decodingAvi Kivity2010-10-24
| | | | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: add macros for repetitive instructionsAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | Some instructions are repetitive in the opcode space, add macros for consolidating them. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * KVM: x86 emulator: fix handling for unemulated instructionsAvi Kivity2010-10-24
| | | | | | | | | | | | | | | | | | | | If an instruction is present in the decode tables but not in the execution switch, it will be emulated as a NOP. An example is IRET (0xcf). Fix by adding default: labels to the execution switches. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* | Merge branch 'x86-cleanups-for-linus' of ↵Linus Torvalds2010-10-21
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Remove stale pmtimer_64.c x86, cleanups: Use clear_page/copy_page rather than memset/memcpy x86: Remove unnecessary #ifdef ACPI/X86_IO_ACPI x86, cleanup: Remove obsolete boot_cpu_id variable
| * | x86, cleanups: Use clear_page/copy_page rather than memset/memcpyJan Beulich2010-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When operating on whole pages, use clear_page() and copy_page() in favor of memset() and memcpy(); after all that's what they are intended for. Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <4C7FB8CA0200007800013F51@vpn.id2.novell.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | Merge branch 'x86-amd-nb-for-linus' of ↵Linus Torvalds2010-10-21
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, amd_nb: Enable GART support for AMD family 0x15 CPUs x86, amd: Use compute unit information to determine thread siblings x86, amd: Extract compute unit information for AMD CPUs x86, amd: Add support for CPUID topology extension of AMD CPUs x86, nmi: Support NMI watchdog on newer AMD CPU families x86, mtrr: Assume SYS_CFG[Tom2ForceMemTypeWB] exists on all future AMD CPUs x86, k8: Rename k8.[ch] to amd_nb.[ch] and CONFIG_K8_NB to CONFIG_AMD_NB x86, k8-gart: Decouple handling of garts and northbridges x86, cacheinfo: Fix dependency of AMD L3 CID x86, kvm: add new AMD SVM feature bits x86, cpu: Fix allowed CPUID bits for KVM guests x86, cpu: Update AMD CPUID feature bits x86, cpu: Fix renamed, not-yet-shipping AMD CPUID feature bit x86, AMD: Remove needless CPU family check (for L3 cache info) x86, tsc: Remove CPU frequency calibration on AMD
| * | Merge remote branch 'origin/x86/cpu' into x86/amd-nbH. Peter Anvin2010-10-01
| |\ \
| | * | x86, cpu: Fix allowed CPUID bits for KVM guestsAndre Przywara2010-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AMD extensions to AVX (FMA4, XOP) work on the same YMM register set as AVX, so they are safe for guests to use, as long as AVX itself is allowed. Add F16C and AES on the way for the same reasons. Signed-off-by: Andre Przywara <andre.przywara@amd.com> LKML-Reference: <1283778860-26843-4-git-send-email-andre.przywara@amd.com> Acked-by: Avi Kivity <avi@redhat.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| | * | x86, cpu: Fix renamed, not-yet-shipping AMD CPUID feature bitAndre Przywara2010-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AMD SSE5 feature set as-it has been replaced by some extensions to the AVX instruction set. Thus the bit formerly advertised as SSE5 is re-used for one of these extensions (XOP). Although this changes the /proc/cpuinfo output, it is not user visible, as there are no CPUs (yet) having this feature. To avoid confusion this should be added to the stable series, too. Cc: stable@kernel.org [.32.x .34.x, .35.x] Signed-off-by: Andre Przywara <andre.przywara@amd.com> LKML-Reference: <1283778860-26843-2-git-send-email-andre.przywara@amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | | KVM: Fix fs/gs reload oops with invalid ldtAvi Kivity2010-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kvm reloads the host's fs and gs blindly, however the underlying segment descriptors may be invalid due to the user modifying the ldt after loading them. Fix by using the safe accessors (loadsegment() and load_gs_index()) instead of home grown unsafe versions. This is CVE-2010-3698. KVM-Stable-Tag. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* | | | KVM: x86: Move TSC reset out of vmcb_initZachary Amsden2010-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The VMCB is reset whenever we receive a startup IPI, so Linux is setting TSC back to zero happens very late in the boot process and destabilizing the TSC. Instead, just set TSC to zero once at VCPU creation time. Why the separate patch? So git-bisect is your friend. Signed-off-by: Zachary Amsden <zamsden@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* | | | KVM: x86: Fix SVM VMCB resetZachary Amsden2010-10-11
|/ / / | | | | | | | | | | | | | | | | | | | | | On reset, VMCB TSC should be set to zero. Instead, code was setting tsc_offset to zero, which passes through the underlying TSC. Signed-off-by: Zachary Amsden <zamsden@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* | | KVM: i8259: fix migrationGleb Natapov2010-09-08
| | | | | | | | | | | | | | | | | | | | | | | | Top of kvm_kpic_state structure should have the same memory layout as kvm_pic_state since it is copied by memcpy. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* | | KVM: fix i8259 oops when no vcpus are onlineAvi Kivity2010-09-08
| | | | | | | | | | | | | | | | | | | | | If there are no vcpus, found will be NULL. Check before doing anything with it. Signed-off-by: Avi Kivity <avi@redhat.com>
* | | KVM: x86 emulator: fix regression with cmpxchg8b on i386 hostsAvi Kivity2010-09-08
|/ / | | | | | | | | | | | | | | | | | | | | operand::val and operand::orig_val are 32-bit on i386, whereas cmpxchg8b operands are 64-bit. Fix by adding val64 and orig_val64 union members to struct operand, and using them where needed. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-10 21:39:44 -0400