Dave Martin <Dave.Martin@xxxxxxx> writes: > Since the the sizes of individual members of the core arm64 > registers vary, the list of register encodings that make sense is > not a simple linear sequence. > > To clarify which encodings to use, this patch adds a brief list > to the documentation. > > Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx> > Reviewed-by: Julien Grall <julien.grall@xxxxxxx> > Reviewed-by: Peter Maydell <peter.maydell@xxxxxxxxxx> Reviewed-by: Alex Bennée <alex.bennee@xxxxxxxxxx> > --- > Documentation/virtual/kvm/api.txt | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt > index 7de9eee..2d4f7ce 100644 > --- a/Documentation/virtual/kvm/api.txt > +++ b/Documentation/virtual/kvm/api.txt > @@ -2107,6 +2107,30 @@ contains elements ranging from 32 to 128 bits. The index is a 32bit > value in the kvm_regs structure seen as a 32bit array. > 0x60x0 0000 0010 <index into the kvm_regs struct:16> > > +Specifically: > + Encoding Register Bits kvm_regs member > +---------------------------------------------------------------- > + 0x6030 0000 0010 0000 X0 64 regs.regs[0] > + 0x6030 0000 0010 0002 X1 64 regs.regs[1] > + ... > + 0x6030 0000 0010 003c X30 64 regs.regs[30] > + 0x6030 0000 0010 003e SP 64 regs.sp > + 0x6030 0000 0010 0040 PC 64 regs.pc > + 0x6030 0000 0010 0042 PSTATE 64 regs.pstate > + 0x6030 0000 0010 0044 SP_EL1 64 sp_el1 > + 0x6030 0000 0010 0046 ELR_EL1 64 elr_el1 > + 0x6030 0000 0010 0048 SPSR_EL1 64 spsr[KVM_SPSR_EL1] (alias SPSR_SVC) > + 0x6030 0000 0010 004a SPSR_ABT 64 spsr[KVM_SPSR_ABT] > + 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 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 > + > arm64 CCSIDR registers are demultiplexed by CSSELR value: > 0x6020 0000 0011 00 <csselr:8> -- Alex Bennée _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
