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charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 4a8acccc2e59b6ac5f4068471d94b40347ebeff0 Auto-Submitted: auto-generated Date: Tue, 22 Sep 2026 15:41:46 +0000 Message-Id: <6ab2a1ba.3636b.653a7be6@gitrepo.freebsd.org> The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=4a8acccc2e59b6ac5f4068471d94b40347ebeff0 commit 4a8acccc2e59b6ac5f4068471d94b40347ebeff0 Author: Konstantin Belousov AuthorDate: 2026-09-19 08:31:59 +0000 Commit: Konstantin Belousov CommitDate: 2026-09-22 15:40:40 +0000 amd64 cpufunc.h: add WRMSRNS helpers Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D59815 --- sys/amd64/include/cpufunc.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/sys/amd64/include/cpufunc.h b/sys/amd64/include/cpufunc.h index e52c55dc80f0..38dfbf2a493b 100644 --- a/sys/amd64/include/cpufunc.h +++ b/sys/amd64/include/cpufunc.h @@ -380,6 +380,19 @@ wrmsr(u_int msr, uint64_t newval) __asm __volatile("wrmsr" : : "a" (low), "d" (high), "c" (msr)); } +static __inline void +wrmsrns(u_int msr, uint64_t newval) +{ + uint32_t low, high; + + low = newval; + high = newval >> 32; + __asm __volatile("wrmsrns" : : "a" (low), "d" (high), "c" (msr)); +} + +#define wrmsr_imm(msr, val) \ + __asm __volatile("wrmsrns %0, %1" : : "r" (val), "i" (msr)) + static __inline void load_cr0(u_long data) {