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Sat, 22 Jun 2019 06:16:26 -0700 (PDT) Received: from bobo.ozlabs.ibm.com ([1.144.136.2]) by smtp.gmail.com with ESMTPSA id n1sm5192471pgv.15.2019.06.22.06.16.24 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sat, 22 Jun 2019 06:16:25 -0700 (PDT) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v3 08/25] powerpc/64s/exception: KVM handler can set the HSRR trap bit Date: Sat, 22 Jun 2019 23:15:18 +1000 Message-Id: <20190622131535.20996-9-npiggin@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190622131535.20996-1-npiggin@gmail.com> References: <20190622131535.20996-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Move the KVM trap HSRR bit into the KVM handler, which can be conditionally applied when hsrr parameter is set. No generated code change. Signed-off-by: Nicholas Piggin --- arch/powerpc/include/asm/exception-64s.h | 5 +++++ arch/powerpc/include/asm/head-64.h | 7 ++----- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index 737c37d1df4b..1d8fc085e845 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -449,7 +449,12 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) ld r10,\area+EX_R10(r13) std r12,HSTATE_SCRATCH0(r13) sldi r12,r9,32 + /* HSRR variants have the 0x2 bit added to their trap number */ + .if \hsrr + ori r12,r12,(\n + 0x2) + .else ori r12,r12,(\n) + .endif /* This reloads r9 before branching to kvmppc_interrupt */ __BRANCH_TO_KVM_EXIT(\area, kvmppc_interrupt) diff --git a/arch/powerpc/include/asm/head-64.h b/arch/powerpc/include/asm/head-64.h index 518d9758b41e..bdd67a26e959 100644 --- a/arch/powerpc/include/asm/head-64.h +++ b/arch/powerpc/include/asm/head-64.h @@ -393,16 +393,13 @@ end_##sname: TRAMP_KVM_BEGIN(do_kvm_##n); \ KVM_HANDLER area, EXC_STD, n, 1 -/* - * HV variant exceptions get the 0x2 bit added to their trap number. - */ #define TRAMP_KVM_HV(area, n) \ TRAMP_KVM_BEGIN(do_kvm_H##n); \ - KVM_HANDLER area, EXC_HV, n + 0x2, 0 + KVM_HANDLER area, EXC_HV, n, 0 #define TRAMP_KVM_HV_SKIP(area, n) \ TRAMP_KVM_BEGIN(do_kvm_H##n); \ - KVM_HANDLER area, EXC_HV, n + 0x2, 1 + KVM_HANDLER area, EXC_HV, n, 1 #define EXC_COMMON(name, realvec, hdlr) \ EXC_COMMON_BEGIN(name); \ -- 2.20.1