From: Bharata B Rao <bharata@linux.ibm.com> To: kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: aneesh.kumar@linux.ibm.com, Bharata B Rao <bharata@linux.ibm.com>, npiggin@gmail.com Subject: [RFC PATCH v0 2/2] KVM: PPC: Book3S HV: Use H_RPT_INVALIDATE in nested KVM Date: Fri, 3 Jul 2020 16:14:20 +0530 [thread overview] Message-ID: <20200703104420.21349-3-bharata@linux.ibm.com> (raw) In-Reply-To: <20200703104420.21349-1-bharata@linux.ibm.com> In the nested KVM case, replace H_TLB_INVALIDATE by the new hcall H_RPT_INVALIDATE if available. The availability of this hcall is determined from "hcall-rpt-invalidate" string in ibm,hypertas-functions DT property. Signed-off-by: Bharata B Rao <bharata@linux.ibm.com> --- arch/powerpc/include/asm/firmware.h | 4 +++- arch/powerpc/kvm/book3s_64_mmu_radix.c | 26 ++++++++++++++++++----- arch/powerpc/kvm/book3s_hv_nested.c | 13 ++++++++++-- arch/powerpc/platforms/pseries/firmware.c | 1 + 4 files changed, 36 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h index 6003c2e533a0..aa6a5ef5d483 100644 --- a/arch/powerpc/include/asm/firmware.h +++ b/arch/powerpc/include/asm/firmware.h @@ -52,6 +52,7 @@ #define FW_FEATURE_PAPR_SCM ASM_CONST(0x0000002000000000) #define FW_FEATURE_ULTRAVISOR ASM_CONST(0x0000004000000000) #define FW_FEATURE_STUFF_TCE ASM_CONST(0x0000008000000000) +#define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000) #ifndef __ASSEMBLY__ @@ -71,7 +72,8 @@ enum { FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN | FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 | FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE | - FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR, + FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR | + FW_FEATURE_RPT_INVALIDATE, FW_FEATURE_PSERIES_ALWAYS = 0, FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR, FW_FEATURE_POWERNV_ALWAYS = 0, diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index e738ea652192..8411e42eedbd 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -21,6 +21,7 @@ #include <asm/pte-walk.h> #include <asm/ultravisor.h> #include <asm/kvm_book3s_uvmem.h> +#include <asm/plpar_wrappers.h> /* * Supported radix tree geometry. @@ -313,9 +314,17 @@ void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr, } psi = shift_to_mmu_psize(pshift); - rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58)); - rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(0, 0, 1), - lpid, rb); + if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) { + rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58)); + rc = plpar_hcall_norets(H_TLB_INVALIDATE, + H_TLBIE_P1_ENC(0, 0, 1), lpid, rb); + } else { + rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU, + H_RPTI_TYPE_NESTED | + H_RPTI_TYPE_TLB, + psize_to_rpti_pgsize(psi), + addr, addr + psize); + } if (rc) pr_err("KVM: TLB page invalidation hcall failed, rc=%ld\n", rc); } @@ -329,8 +338,15 @@ static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned int lpid) return; } - rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(1, 0, 1), - lpid, TLBIEL_INVAL_SET_LPID); + if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) + rc = plpar_hcall_norets(H_TLB_INVALIDATE, + H_TLBIE_P1_ENC(1, 0, 1), + lpid, TLBIEL_INVAL_SET_LPID); + else + rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU, + H_RPTI_TYPE_NESTED | + H_RPTI_TYPE_PWC, H_RPTI_PAGE_ALL, + 0, -1UL); if (rc) pr_err("KVM: TLB PWC invalidation hcall failed, rc=%ld\n", rc); } diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c index efb78d37f29a..4d023c451be4 100644 --- a/arch/powerpc/kvm/book3s_hv_nested.c +++ b/arch/powerpc/kvm/book3s_hv_nested.c @@ -19,6 +19,7 @@ #include <asm/pgalloc.h> #include <asm/pte-walk.h> #include <asm/reg.h> +#include <asm/plpar_wrappers.h> static struct patb_entry *pseries_partition_tb; @@ -401,8 +402,16 @@ static void kvmhv_flush_lpid(unsigned int lpid) return; } - rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(2, 0, 1), - lpid, TLBIEL_INVAL_SET_LPID); + if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) + rc = plpar_hcall_norets(H_TLB_INVALIDATE, + H_TLBIE_P1_ENC(2, 0, 1), + lpid, TLBIEL_INVAL_SET_LPID); + else + rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU, + H_RPTI_TYPE_NESTED | + H_RPTI_TYPE_TLB | H_RPTI_TYPE_PWC | + H_RPTI_TYPE_PAT, + H_RPTI_PAGE_ALL, 0, -1UL); if (rc) pr_err("KVM: TLB LPID invalidation hcall failed, rc=%ld\n", rc); } diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c index 3e49cc23a97a..4c7b7f5a2ebc 100644 --- a/arch/powerpc/platforms/pseries/firmware.c +++ b/arch/powerpc/platforms/pseries/firmware.c @@ -65,6 +65,7 @@ hypertas_fw_features_table[] = { {FW_FEATURE_HPT_RESIZE, "hcall-hpt-resize"}, {FW_FEATURE_BLOCK_REMOVE, "hcall-block-remove"}, {FW_FEATURE_PAPR_SCM, "hcall-scm"}, + {FW_FEATURE_RPT_INVALIDATE, "hcall-rpt-invalidate"}, }; /* Build up the firmware features bitmask using the contents of -- 2.21.3
WARNING: multiple messages have this Message-ID (diff)
From: Bharata B Rao <bharata@linux.ibm.com> To: kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: aneesh.kumar@linux.ibm.com, Bharata B Rao <bharata@linux.ibm.com>, npiggin@gmail.com Subject: [RFC PATCH v0 2/2] KVM: PPC: Book3S HV: Use H_RPT_INVALIDATE in nested KVM Date: Fri, 03 Jul 2020 10:56:20 +0000 [thread overview] Message-ID: <20200703104420.21349-3-bharata@linux.ibm.com> (raw) In-Reply-To: <20200703104420.21349-1-bharata@linux.ibm.com> In the nested KVM case, replace H_TLB_INVALIDATE by the new hcall H_RPT_INVALIDATE if available. The availability of this hcall is determined from "hcall-rpt-invalidate" string in ibm,hypertas-functions DT property. Signed-off-by: Bharata B Rao <bharata@linux.ibm.com> --- arch/powerpc/include/asm/firmware.h | 4 +++- arch/powerpc/kvm/book3s_64_mmu_radix.c | 26 ++++++++++++++++++----- arch/powerpc/kvm/book3s_hv_nested.c | 13 ++++++++++-- arch/powerpc/platforms/pseries/firmware.c | 1 + 4 files changed, 36 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h index 6003c2e533a0..aa6a5ef5d483 100644 --- a/arch/powerpc/include/asm/firmware.h +++ b/arch/powerpc/include/asm/firmware.h @@ -52,6 +52,7 @@ #define FW_FEATURE_PAPR_SCM ASM_CONST(0x0000002000000000) #define FW_FEATURE_ULTRAVISOR ASM_CONST(0x0000004000000000) #define FW_FEATURE_STUFF_TCE ASM_CONST(0x0000008000000000) +#define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000) #ifndef __ASSEMBLY__ @@ -71,7 +72,8 @@ enum { FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN | FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 | FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE | - FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR, + FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR | + FW_FEATURE_RPT_INVALIDATE, FW_FEATURE_PSERIES_ALWAYS = 0, FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR, FW_FEATURE_POWERNV_ALWAYS = 0, diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index e738ea652192..8411e42eedbd 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -21,6 +21,7 @@ #include <asm/pte-walk.h> #include <asm/ultravisor.h> #include <asm/kvm_book3s_uvmem.h> +#include <asm/plpar_wrappers.h> /* * Supported radix tree geometry. @@ -313,9 +314,17 @@ void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr, } psi = shift_to_mmu_psize(pshift); - rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58)); - rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(0, 0, 1), - lpid, rb); + if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) { + rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58)); + rc = plpar_hcall_norets(H_TLB_INVALIDATE, + H_TLBIE_P1_ENC(0, 0, 1), lpid, rb); + } else { + rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU, + H_RPTI_TYPE_NESTED | + H_RPTI_TYPE_TLB, + psize_to_rpti_pgsize(psi), + addr, addr + psize); + } if (rc) pr_err("KVM: TLB page invalidation hcall failed, rc=%ld\n", rc); } @@ -329,8 +338,15 @@ static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned int lpid) return; } - rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(1, 0, 1), - lpid, TLBIEL_INVAL_SET_LPID); + if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) + rc = plpar_hcall_norets(H_TLB_INVALIDATE, + H_TLBIE_P1_ENC(1, 0, 1), + lpid, TLBIEL_INVAL_SET_LPID); + else + rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU, + H_RPTI_TYPE_NESTED | + H_RPTI_TYPE_PWC, H_RPTI_PAGE_ALL, + 0, -1UL); if (rc) pr_err("KVM: TLB PWC invalidation hcall failed, rc=%ld\n", rc); } diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c index efb78d37f29a..4d023c451be4 100644 --- a/arch/powerpc/kvm/book3s_hv_nested.c +++ b/arch/powerpc/kvm/book3s_hv_nested.c @@ -19,6 +19,7 @@ #include <asm/pgalloc.h> #include <asm/pte-walk.h> #include <asm/reg.h> +#include <asm/plpar_wrappers.h> static struct patb_entry *pseries_partition_tb; @@ -401,8 +402,16 @@ static void kvmhv_flush_lpid(unsigned int lpid) return; } - rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(2, 0, 1), - lpid, TLBIEL_INVAL_SET_LPID); + if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) + rc = plpar_hcall_norets(H_TLB_INVALIDATE, + H_TLBIE_P1_ENC(2, 0, 1), + lpid, TLBIEL_INVAL_SET_LPID); + else + rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU, + H_RPTI_TYPE_NESTED | + H_RPTI_TYPE_TLB | H_RPTI_TYPE_PWC | + H_RPTI_TYPE_PAT, + H_RPTI_PAGE_ALL, 0, -1UL); if (rc) pr_err("KVM: TLB LPID invalidation hcall failed, rc=%ld\n", rc); } diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c index 3e49cc23a97a..4c7b7f5a2ebc 100644 --- a/arch/powerpc/platforms/pseries/firmware.c +++ b/arch/powerpc/platforms/pseries/firmware.c @@ -65,6 +65,7 @@ hypertas_fw_features_table[] = { {FW_FEATURE_HPT_RESIZE, "hcall-hpt-resize"}, {FW_FEATURE_BLOCK_REMOVE, "hcall-block-remove"}, {FW_FEATURE_PAPR_SCM, "hcall-scm"}, + {FW_FEATURE_RPT_INVALIDATE, "hcall-rpt-invalidate"}, }; /* Build up the firmware features bitmask using the contents of -- 2.21.3
next prev parent reply other threads:[~2020-07-03 10:50 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-03 10:44 [RFC PATCH v0 0/2] Use H_RPT_INVALIDATE for nested guest Bharata B Rao 2020-07-03 10:56 ` Bharata B Rao 2020-07-03 10:44 ` [RFC PATCH v0 1/2] KVM: PPC: Book3S HV: Add support for H_RPT_INVALIDATE (nested case only) Bharata B Rao 2020-07-03 10:56 ` Bharata B Rao 2020-07-03 10:44 ` Bharata B Rao [this message] 2020-07-03 10:56 ` [RFC PATCH v0 2/2] KVM: PPC: Book3S HV: Use H_RPT_INVALIDATE in nested KVM Bharata B Rao 2020-07-09 5:18 ` Paul Mackerras 2020-07-09 5:18 ` Paul Mackerras 2020-07-09 9:08 ` Bharata B Rao 2020-07-09 9:20 ` Bharata B Rao 2020-07-09 10:07 ` Paul Mackerras 2020-07-09 10:07 ` Paul Mackerras 2020-07-14 5:31 ` Bharata B Rao 2020-07-14 5:43 ` Bharata B Rao
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