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From: wei.guo.simon@gmail.com
To: linuxppc-dev@lists.ozlabs.org
Cc: Paul Mackerras <paulus@ozlabs.org>,
	kvm@vger.kernel.org, kvm-ppc@vger.kernel.org,
	Simon Guo <wei.guo.simon@gmail.com>
Subject: [PATCH v4 13/29] KVM: PPC: Book3S PR: adds new kvmppc_copyto_vcpu_tm/kvmppc_copyfrom_vcpu_tm API for PR KVM.
Date: Wed, 23 May 2018 15:01:56 +0800	[thread overview]
Message-ID: <1527058932-7434-14-git-send-email-wei.guo.simon@gmail.com> (raw)
In-Reply-To: <1527058932-7434-1-git-send-email-wei.guo.simon@gmail.com>

From: Simon Guo <wei.guo.simon@gmail.com>

This patch adds 2 new APIs: kvmppc_copyto_vcpu_tm() and
kvmppc_copyfrom_vcpu_tm().  These 2 APIs will be used to copy from/to TM
data between VCPU_TM/VCPU area.

PR KVM will use these APIs for treclaim. or trchkpt. emulation.

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
---
 arch/powerpc/kvm/book3s_emulate.c | 41 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 2eb457b..f81a921 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -87,6 +87,47 @@ static bool spr_allowed(struct kvm_vcpu *vcpu, enum priv_level level)
 	return true;
 }
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+static inline void kvmppc_copyto_vcpu_tm(struct kvm_vcpu *vcpu)
+{
+	memcpy(&vcpu->arch.gpr_tm[0], &vcpu->arch.regs.gpr[0],
+			sizeof(vcpu->arch.gpr_tm));
+	memcpy(&vcpu->arch.fp_tm, &vcpu->arch.fp,
+			sizeof(struct thread_fp_state));
+	memcpy(&vcpu->arch.vr_tm, &vcpu->arch.vr,
+			sizeof(struct thread_vr_state));
+	vcpu->arch.ppr_tm = vcpu->arch.ppr;
+	vcpu->arch.dscr_tm = vcpu->arch.dscr;
+	vcpu->arch.amr_tm = vcpu->arch.amr;
+	vcpu->arch.ctr_tm = vcpu->arch.regs.ctr;
+	vcpu->arch.tar_tm = vcpu->arch.tar;
+	vcpu->arch.lr_tm = vcpu->arch.regs.link;
+	vcpu->arch.cr_tm = vcpu->arch.cr;
+	vcpu->arch.xer_tm = vcpu->arch.regs.xer;
+	vcpu->arch.vrsave_tm = vcpu->arch.vrsave;
+}
+
+static inline void kvmppc_copyfrom_vcpu_tm(struct kvm_vcpu *vcpu)
+{
+	memcpy(&vcpu->arch.regs.gpr[0], &vcpu->arch.gpr_tm[0],
+			sizeof(vcpu->arch.regs.gpr));
+	memcpy(&vcpu->arch.fp, &vcpu->arch.fp_tm,
+			sizeof(struct thread_fp_state));
+	memcpy(&vcpu->arch.vr, &vcpu->arch.vr_tm,
+			sizeof(struct thread_vr_state));
+	vcpu->arch.ppr = vcpu->arch.ppr_tm;
+	vcpu->arch.dscr = vcpu->arch.dscr_tm;
+	vcpu->arch.amr = vcpu->arch.amr_tm;
+	vcpu->arch.regs.ctr = vcpu->arch.ctr_tm;
+	vcpu->arch.tar = vcpu->arch.tar_tm;
+	vcpu->arch.regs.link = vcpu->arch.lr_tm;
+	vcpu->arch.cr = vcpu->arch.cr_tm;
+	vcpu->arch.regs.xer = vcpu->arch.xer_tm;
+	vcpu->arch.vrsave = vcpu->arch.vrsave_tm;
+}
+
+#endif
+
 int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
 			      unsigned int inst, int *advance)
 {
-- 
1.8.3.1

  parent reply	other threads:[~2018-05-23  7:47 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-23  7:01 [PATCH v4 00/29] KVM: PPC: Book3S PR: Transaction memory support on PR KVM wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 01/29] powerpc: export symbol msr_check_and_set() wei.guo.simon
2018-05-25  1:59   ` [v4,01/29] " Michael Ellerman
2018-05-23  7:01 ` [PATCH v4 02/29] powerpc: add TEXASR related macros wei.guo.simon
2018-05-25  1:59   ` [v4,02/29] " Michael Ellerman
2018-05-23  7:01 ` [PATCH v4 03/29] powerpc: export tm_enable()/tm_disable/tm_abort() APIs wei.guo.simon
2018-05-25  1:59   ` [v4, " Michael Ellerman
2018-05-23  7:01 ` [PATCH v4 04/29] KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file wei.guo.simon
2018-05-29 23:40   ` Paul Mackerras
2018-05-30  9:04     ` Simon Guo
2018-05-23  7:01 ` [PATCH v4 05/29] KVM: PPC: Book3S PR: add new parameter (guest MSR) for kvmppc_save_tm()/kvmppc_restore_tm() wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 06/29] KVM: PPC: Book3S PR: turn on FP/VSX/VMX MSR bits in kvmppc_save_tm() wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 07/29] KVM: PPC: Book3S PR: add C function wrapper for _kvmppc_save/restore_tm() wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 08/29] KVM: PPC: Book3S PR: In PR KVM suspends Transactional state when inject an interrupt wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 09/29] KVM: PPC: Book3S PR: PR KVM pass through MSR TM/TS bits to shadow_msr wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 10/29] KVM: PPC: Book3S PR: Sync TM bits to shadow msr for problem state guest wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 11/29] KVM: PPC: Book3S PR: implement RFID TM behavior to suppress change from S0 to N0 wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 12/29] KVM: PPC: Book3S PR: prevent TS bits change in kvmppc_interrupt_pr() wei.guo.simon
2018-05-23  7:01 ` wei.guo.simon [this message]
2018-05-23  7:01 ` [PATCH v4 14/29] KVM: PPC: Book3S PR: add kvmppc_save/restore_tm_sprs() APIs wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 15/29] KVM: PPC: Book3S PR: add transaction memory save/restore skeleton for PR KVM wei.guo.simon
2018-05-23  7:01 ` [PATCH v4 16/29] KVM: PPC: Book3S PR: add math support for PR KVM HTM wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 17/29] KVM: PPC: Book3S PR: make mtspr/mfspr emulation behavior based on active TM SPRs wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 18/29] KVM: PPC: Book3S PR: always fail transaction in guest privilege state wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 19/29] KVM: PPC: Book3S PR: enable NV reg restore for reading TM SPR at " wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 20/29] KVM: PPC: Book3S PR: adds emulation for treclaim wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 21/29] KVM: PPC: Book3S PR: add emulation for trechkpt in PR KVM wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 22/29] KVM: PPC: Book3S PR: add emulation for tabort. for privilege guest wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 23/29] KVM: PPC: Book3S PR: add guard code to prevent returning to guest with PR=0 and Transactional state wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 24/29] KVM: PPC: Book3S PR: Support TAR handling for PR KVM HTM wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 25/29] KVM: PPC: Book3S PR: enable HTM for PR KVM for KVM_CHECK_EXTENSION ioctl wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 26/29] KVM: PPC: move vcpu_load/vcpu_put down to each ioctl case in kvm_arch_vcpu_ioctl wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 27/29] KVM: PPC: remove load/put vcpu for KVM_GET/SET_ONE_REG ioctl wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 28/29] KVM: PPC: remove load/put vcpu for KVM_GET_REGS/KVM_SET_REGS wei.guo.simon
2018-05-23  7:02 ` [PATCH v4 29/29] KVM: PPC: Book3S PR: enable kvmppc_get/set_one_reg_pr() for HTM registers wei.guo.simon

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