Date: Sun, 31 Aug 2025 00:39:54 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: f086954950c6 - stable/14 - amd64 vmx: micro-optimize vmlaunch failure path Message-ID: <202508310039.57V0ds1G070304@gitrepo.freebsd.org>
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The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=f086954950c6ee18a72dc28de31ad348150e418f commit f086954950c6ee18a72dc28de31ad348150e418f Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2025-08-23 12:52:08 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2025-08-31 00:38:23 +0000 amd64 vmx: micro-optimize vmlaunch failure path (cherry picked from commit 2b35b717188adb843de100c4221ec1ded13024f0) --- sys/amd64/vmm/intel/vmx_support.S | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/sys/amd64/vmm/intel/vmx_support.S b/sys/amd64/vmm/intel/vmx_support.S index f393f160b101..2f3871ac7d89 100644 --- a/sys/amd64/vmm/intel/vmx_support.S +++ b/sys/amd64/vmm/intel/vmx_support.S @@ -177,13 +177,11 @@ do_launch: */ movq %rsp, %rdi /* point %rdi back to 'vmxctx' */ movl $VMX_VMLAUNCH_ERROR, %eax - jmp decode_inst_error - + /* FALLTHROUGH */ decode_inst_error: movl $VM_FAIL_VALID, %r11d - jz inst_error - movl $VM_FAIL_INVALID, %r11d -inst_error: + movl $VM_FAIL_INVALID, %esi + cmovnzl %esi, %r11d movl %r11d, VMXCTX_INST_FAIL_STATUS(%rdi) /*
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