Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-18 Thread Paolo Bonzini
Il 17/03/2014 18:38, H. Peter Anvin ha scritto: I'm not sure what you mean with "valid real mode selectors"; the normal case in big real mode is that either CS = SS = 0 or CS = SS = . I mean "valid according to the VMX spec" for running in vm86 mode: base = selector << 4, limit = 0x, acces

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-17 Thread H. Peter Anvin
On 03/17/2014 10:01 AM, Paolo Bonzini wrote: > the emulator). > > If CS and possibly SS are valid real mode selectors, it should be > possible to run big real mode at almost-full speed, taking exits only > for memory accesses via other segment registers. It is on my todo list, > but not very high

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-17 Thread Paolo Bonzini
Il 17/03/2014 16:16, H. Peter Anvin ha scritto: After seeing the sheer number of one-off additions, I'm wondering if going through the opcode map systematically and see what is still missing might not be a bad idea. Memory access instructions always need emulation, but there aren't that many

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-17 Thread H. Peter Anvin
After seeing the sheer number of one-off additions, I'm wondering if going through the opcode map systematically and see what is still missing might not be a bad idea. On March 17, 2014 2:30:43 AM PDT, Paolo Bonzini wrote: >Il 15/03/2014 23:42, H. Peter Anvin ha scritto: >> Stupid question... w

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-17 Thread Paolo Bonzini
Il 15/03/2014 23:39, H. Peter Anvin ha scritto: MOVAPS, MOVAPD, and MOVDQA are the same operation. They may, architecturally, have different performance characteristics, but nothing that would affect an emulator. In fact MOVAPS and MOVAPD are implemented the same way in this patch: I(Aligne

Re: [PATCH kvm-unit-tests 0/2] test MOVAPS and MOVAPD SSE instructions

2014-03-17 Thread Paolo Bonzini
Il 15/03/2014 21:03, Igor Mammedov ha scritto: This series adds checks for MOVAPS and MOVAPD SSE instructions. It's used by MS HCK test on 32-bit Windows 8.1 Igor Mammedov (2): emulator: movaps emulator: movapd x86/emulator.c | 14 ++ 1 file changed, 14 inser

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-17 Thread Paolo Bonzini
Il 15/03/2014 21:01, Igor Mammedov ha scritto: MS HCK test fails on 32-bit Windows 8.1 due to missing MOVAPS instruction emulation, this series adds it and while at it, it adds emulation of MOVAPD which is trivial to implement on top of MOVAPS. Igor Mammedov (2): KVM: x86 emulator: emulate MOV

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-17 Thread Paolo Bonzini
Il 15/03/2014 23:42, H. Peter Anvin ha scritto: Stupid question... what instructions do NOT need emulsion in KVM? It would seem that at least anything that touches memory would? Yes, indeed. Anything that touches memory can be used on MMIO and then needs emulation. Paolo On March 15, 201

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-15 Thread H. Peter Anvin
Stupid question... what instructions do NOT need emulsion in KVM? It would seem that at least anything that touches memory would? On March 15, 2014 1:01:58 PM PDT, Igor Mammedov wrote: >MS HCK test fails on 32-bit Windows 8.1 due to missing MOVAPS >instruction emulation, this series adds it and

Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-15 Thread H. Peter Anvin
MOVAPS, MOVAPD, and MOVDQA are the same operation. They may, architecturally, have different performance characteristics, but nothing that would affect an emulator. On March 15, 2014 1:01:58 PM PDT, Igor Mammedov wrote: >MS HCK test fails on 32-bit Windows 8.1 due to missing MOVAPS >instructio

[PATCH kvm-unit-tests 0/2] test MOVAPS and MOVAPD SSE instructions

2014-03-15 Thread Igor Mammedov
This series adds checks for MOVAPS and MOVAPD SSE instructions. It's used by MS HCK test on 32-bit Windows 8.1 Igor Mammedov (2): emulator: movaps emulator: movapd x86/emulator.c | 14 ++ 1 file changed, 14 insertions(+) -- 1.8.5.3 -- To unsubscribe from this list: sen

[PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

2014-03-15 Thread Igor Mammedov
MS HCK test fails on 32-bit Windows 8.1 due to missing MOVAPS instruction emulation, this series adds it and while at it, it adds emulation of MOVAPD which is trivial to implement on top of MOVAPS. Igor Mammedov (2): KVM: x86 emulator: emulate MOVAPS KVM: x86 emulator: emulate MOVAPD arch/x8

RE: SSE instructions

2000-09-28 Thread Lyle Coder
Hello, 2.4.0-test1 and higher. make sure you select PIII as the CPU in the config. Best Wishes, Lyle -- Which version of the kernel is needed in order to run the following program on an PIII? void main() { __asm__ __volatile__("xorps %%xmm0, %%xmm1" ::: "memory"); } astor -- Alexande

SSE instructions

2000-09-28 Thread Alexander S A Kjeldaas
Which version of the kernel is needed in order to run the following program on an PIII? void main() { __asm__ __volatile__("xorps %%xmm0, %%xmm1" ::: "memory"); } astor -- Alexander KjeldaasM