Date: Thu, 26 Nov 2020 05:58:56 +0000 (UTC) From: Peter Grehan <grehan@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r368047 - head/sys/amd64/vmm/amd Message-ID: <202011260558.0AQ5wuYM078970@repo.freebsd.org>
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Author: grehan Date: Thu Nov 26 05:58:55 2020 New Revision: 368047 URL: https://svnweb.freebsd.org/changeset/base/368047 Log: Remove manual instruction encodings for VMLOAD, VMRUN, and VMSAVE. This is a relic from when these instructions weren't supported by the toolchain. No functional change. Submitted by: adam_fenn.io Reviewed by: grehan Approved by: grehan (bhyve) MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D27130 Modified: head/sys/amd64/vmm/amd/svm_support.S Modified: head/sys/amd64/vmm/amd/svm_support.S ============================================================================== --- head/sys/amd64/vmm/amd/svm_support.S Thu Nov 26 04:55:02 2020 (r368046) +++ head/sys/amd64/vmm/amd/svm_support.S Thu Nov 26 05:58:55 2020 (r368047) @@ -39,10 +39,6 @@ #define VENTER push %rbp ; mov %rsp,%rbp #define VLEAVE pop %rbp -#define VMLOAD .byte 0x0f, 0x01, 0xda -#define VMRUN .byte 0x0f, 0x01, 0xd8 -#define VMSAVE .byte 0x0f, 0x01, 0xdb - /* * svm_launch(uint64_t vmcb, struct svm_regctx *gctx, struct pcpu *pcpu) * %rdi: physical address of VMCB @@ -91,9 +87,9 @@ ENTRY(svm_launch) movq SCTX_RDI(%rsi), %rdi movq SCTX_RSI(%rsi), %rsi /* %rsi must be restored last */ - VMLOAD - VMRUN - VMSAVE + vmload %rax + vmrun %rax + vmsave %rax pop %rax /* pop guest context pointer from the stack */
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