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[Qemu-devel] [PATCH 0/3] target-i386: rework how AVX/AVX512 registers ar
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 0/3] target-i386: rework how AVX/AVX512 registers are stored |
Date: |
Wed, 7 Jan 2015 18:39:11 +0100 |
Right now, AVX and AVX512 registers are stored part in the SSE registers,
part in separate fields that follow the XSAVE format.
This series instead uses a single 512-bit field for each of the
32 registers. It makes the marshalling a bit more complicated but
keeps the madness out of CPUX86State's public interface. Also, a
hypothetical XSAVE implementation of TCG would probably need something
like this too, and it could share most of the implementation with KVM's
kvm_get_xsave/kvm_put_xsave wrappers.
As a bonus, patch 1 fixes a real bug found while inspecting uses of
xmm_regs.
Paolo
Paolo Bonzini (4):
target-i386: fix movntsd on big-endian hosts
target-i386: do not memcpy in and out of xmm_regs
target-i386: use vmstate_offset_sub_array for AVX registers
target-i386: make xmm_regs 512-bit wide
include/migration/vmstate.h | 10 +++++++
target-i386/cpu.h | 68 +++++------------------------------------
target-i386/kvm.c | 62 +++++++++++++++++++++++++++-----------
target-i386/machine.c | 73 +++++++++++++++++++++++----------------------
target-i386/translate.c | 11 +++----
5 files changed, 106 insertions(+), 118 deletions(-)
--
1.8.3.1
- [Qemu-devel] [PATCH 0/3] target-i386: rework how AVX/AVX512 registers are stored,
Paolo Bonzini <=
[Qemu-devel] [PATCH 4/4] target-i386: make xmm_regs 512-bit wide, Paolo Bonzini, 2015/01/07
[Qemu-devel] [PATCH 2/4] target-i386: do not memcpy in and out of xmm_regs, Paolo Bonzini, 2015/01/07