diff options
| author | Gautam Menghani <gautam@linux.ibm.com> | 2024-06-05 17:09:09 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2024-06-06 22:38:10 +1000 |
| commit | 55dfb8bed6fe8bda390cc71cca878d11a9407099 (patch) | |
| tree | f4de5fe8d2474855b8dce0202cfea2ec9fb303b9 /arch/powerpc/kvm | |
| parent | e1f288d2f9c69bb8965db9fb99a19b58231a00dd (diff) | |
KVM: PPC: Book3S HV nestedv2: Add DPDES support in helper library for Guest state buffer
Add support for using DPDES in the library for using guest state
buffers. DPDES support is needed for enabling usage of doorbells in a L2
KVM on PAPR guest.
Fixes: 6ccbbc33f06a ("KVM: PPC: Add helper library for Guest State Buffers")
Cc: stable@vger.kernel.org # v6.7+
Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240605113913.83715-2-gautam@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_nestedv2.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/kvm/test-guest-state-buffer.c | 2 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_nestedv2.c b/arch/powerpc/kvm/book3s_hv_nestedv2.c index 1091f7a83b25..342f58314770 100644 --- a/arch/powerpc/kvm/book3s_hv_nestedv2.c +++ b/arch/powerpc/kvm/book3s_hv_nestedv2.c @@ -311,6 +311,10 @@ static int gs_msg_ops_vcpu_fill_info(struct kvmppc_gs_buff *gsb, rc = kvmppc_gse_put_u64(gsb, iden, vcpu->arch.vcore->vtb); break; + case KVMPPC_GSID_DPDES: + rc = kvmppc_gse_put_u64(gsb, iden, + vcpu->arch.vcore->dpdes); + break; case KVMPPC_GSID_LPCR: rc = kvmppc_gse_put_u64(gsb, iden, vcpu->arch.vcore->lpcr); @@ -543,6 +547,9 @@ static int gs_msg_ops_vcpu_refresh_info(struct kvmppc_gs_msg *gsm, case KVMPPC_GSID_VTB: vcpu->arch.vcore->vtb = kvmppc_gse_get_u64(gse); break; + case KVMPPC_GSID_DPDES: + vcpu->arch.vcore->dpdes = kvmppc_gse_get_u64(gse); + break; case KVMPPC_GSID_LPCR: vcpu->arch.vcore->lpcr = kvmppc_gse_get_u64(gse); break; diff --git a/arch/powerpc/kvm/test-guest-state-buffer.c b/arch/powerpc/kvm/test-guest-state-buffer.c index 4720b8dc8837..2571ccc618c9 100644 --- a/arch/powerpc/kvm/test-guest-state-buffer.c +++ b/arch/powerpc/kvm/test-guest-state-buffer.c @@ -151,7 +151,7 @@ static void test_gs_bitmap(struct kunit *test) i++; } - for (u16 iden = KVMPPC_GSID_GPR(0); iden <= KVMPPC_GSID_CTRL; iden++) { + for (u16 iden = KVMPPC_GSID_GPR(0); iden <= KVMPPC_GSE_DW_REGS_END; iden++) { kvmppc_gsbm_set(&gsbm, iden); kvmppc_gsbm_set(&gsbm1, iden); KUNIT_EXPECT_TRUE(test, kvmppc_gsbm_test(&gsbm, iden)); |