Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d37c85571904a622cbabc7a2e04b8c919de75ac0 Commit: d37c85571904a622cbabc7a2e04b8c919de75ac0 Parent: 4c981b43d7ec18818754bf85b829865abd0ce340 Author: Aurelien Jarno <[EMAIL PROTECTED]> AuthorDate: Wed Jul 25 10:19:54 2007 +0200 Committer: Avi Kivity <[EMAIL PROTECTED]> CommitDate: Wed Jul 25 14:31:27 2007 +0300
KVM: disable writeback for 0x0f 0x01 instructions. 0x0f 0x01 instructions (ie lgdt, lidt, smsw, lmsw and invlpg) does not use writeback. This patch set no_wb=1 when emulating those instructions. This fixes a regression booting the FreeBSD kernel on AMD. Signed-off-by: Aurelien Jarno <[EMAIL PROTECTED]> Signed-off-by: Avi Kivity <[EMAIL PROTECTED]> --- drivers/kvm/x86_emulate.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index 1b800fc..1f979cb 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -1178,6 +1178,8 @@ pop_instruction: twobyte_insn: switch (b) { case 0x01: /* lgdt, lidt, lmsw */ + /* Disable writeback. */ + no_wb = 1; switch (modrm_reg) { u16 size; unsigned long address; - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html