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| author | Ravi Bangoria <ravi.bangoria@linux.ibm.com> | 2020-12-16 16:12:18 +0530 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2021-02-10 14:31:08 +1100 |
| commit | bd1de1a0e6eff4bde5ceae969673b85b8446fd6a (patch) | |
| tree | 543fdbe810211e27e2e089697188810301d9643a /arch/powerpc/include/asm/hvcall.h | |
| parent | 122954ed7db313c53698c35005e93e8e04135428 (diff) | |
| download | linux-bd1de1a0e6eff4bde5ceae969673b85b8446fd6a.tar.bz2 | |
KVM: PPC: Book3S HV: Add infrastructure to support 2nd DAWR
KVM code assumes single DAWR everywhere. Add code to support 2nd DAWR.
DAWR is a hypervisor resource and thus H_SET_MODE hcall is used to set/
unset it. Introduce new case H_SET_MODE_RESOURCE_SET_DAWR1 for 2nd DAWR.
Also, KVM will support 2nd DAWR only if CPU_FTR_DAWR1 is set.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/include/asm/hvcall.h')
| -rw-r--r-- | arch/powerpc/include/asm/hvcall.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index cb4d07e2c0cc..ed6086d57b22 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -569,16 +569,22 @@ struct hv_guest_state { u64 pidr; u64 cfar; u64 ppr; + /* Version 1 ends here */ + u64 dawr1; + u64 dawrx1; + /* Version 2 ends here */ }; /* Latest version of hv_guest_state structure */ -#define HV_GUEST_STATE_VERSION 1 +#define HV_GUEST_STATE_VERSION 2 static inline int hv_guest_state_size(unsigned int version) { switch (version) { case 1: return offsetofend(struct hv_guest_state, ppr); + case 2: + return offsetofend(struct hv_guest_state, dawrx1); default: return -1; } |