Date: Sat, 23 Aug 2014 22:44:31 +0000 (UTC) From: Neel Natu <neel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r270436 - head/sys/amd64/vmm Message-ID: <201408232244.s7NMiVjL096252@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: neel Date: Sat Aug 23 22:44:31 2014 New Revision: 270436 URL: http://svnweb.freebsd.org/changeset/base/270436 Log: Fix a bug in the emulation of CPUID leaf 0x4 where bhyve was claiming that the vcpu had no caches at all. This causes problems when executing applications in the guest compiled with the Intel compiler. Submitted by: Mark Hill (mark.hill@tidalscale.com) Modified: head/sys/amd64/vmm/x86.c Modified: head/sys/amd64/vmm/x86.c ============================================================================== --- head/sys/amd64/vmm/x86.c Sat Aug 23 22:03:15 2014 (r270435) +++ head/sys/amd64/vmm/x86.c Sat Aug 23 22:44:31 2014 (r270436) @@ -215,7 +215,7 @@ x86_emulate_cpuid(struct vm *vm, int vcp break; case CPUID_0000_0004: - do_cpuid(4, regs); + cpuid_count(*eax, *ecx, regs); /* * Do not expose topology. @@ -230,7 +230,7 @@ x86_emulate_cpuid(struct vm *vm, int vcp * Therefore 0 for both indicates 1 core per * package and no cache sharing. */ - regs[0] &= 0xffff8000; + regs[0] &= 0x3ff; break; case CPUID_0000_0007:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201408232244.s7NMiVjL096252>