On Thu, Nov 22, 2018 at 03:31:51PM +0000, Alex Bennée wrote: > > Dave Martin <Dave.Martin@xxxxxxx> writes: > > > This patch adds sections to the KVM API documentation describing > > the extensions for supporting the Scalable Vector Extension (SVE) > > in guests. > > > > Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx> > > --- > > Documentation/virtual/kvm/api.txt | 142 +++++++++++++++++++++++++++++++++++++- > > 1 file changed, 139 insertions(+), 3 deletions(-) > > > > diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt > > index a58067b..b8257d4 100644 > > --- a/Documentation/virtual/kvm/api.txt > > +++ b/Documentation/virtual/kvm/api.txt > > @@ -2054,13 +2054,21 @@ Specifically: > > 0x6030 0000 0010 004c SPSR_UND 64 spsr[KVM_SPSR_UND] > > 0x6030 0000 0010 004e SPSR_IRQ 64 spsr[KVM_SPSR_IRQ] > > 0x6060 0000 0010 0050 SPSR_FIQ 64 spsr[KVM_SPSR_FIQ] > > - 0x6040 0000 0010 0054 V0 128 fp_regs.vregs[0] > > - 0x6040 0000 0010 0058 V1 128 fp_regs.vregs[1] > > + 0x6040 0000 0010 0054 V0 128 fp_regs.vregs[0] (*) > > + 0x6040 0000 0010 0058 V1 128 fp_regs.vregs[1] (*) > > ... > > - 0x6040 0000 0010 00d0 V31 128 fp_regs.vregs[31] > > + 0x6040 0000 0010 00d0 V31 128 fp_regs.vregs[31] (*) > > 0x6020 0000 0010 00d4 FPSR 32 fp_regs.fpsr > > 0x6020 0000 0010 00d5 FPCR 32 fp_regs.fpcr > > > > +(*) These encodings are not accepted for SVE-enabled vcpus. See > > + KVM_ARM_SVE_CONFIG for details of how SVE support is configured for > > + a vcpu. > > + > > + The equivalent register content can be accessed via bits [2047:0] > > of > > You mean [127:0] I think. Good spot. Yes. Possibly I meant "through the first slice of the corresponding Zn", though [127:0] should make it clear both which slice and which bits within the slice to look at. [...] Cheers ---Dave _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
