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Mon, 25 Nov 2024 11:59:27 -0800 (PST) From: Jean-Philippe Brucker To: peter.maydell@linaro.org Cc: richard.henderson@linaro.org, philmd@linaro.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org, alex.bennee@linaro.org, Jean-Philippe Brucker Subject: [PATCH v3 05/26] target/arm/kvm: Split kvm_arch_get/put_registers Date: Mon, 25 Nov 2024 19:56:04 +0000 Message-ID: <20241125195626.856992-7-jean-philippe@linaro.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241125195626.856992-2-jean-philippe@linaro.org> References: <20241125195626.856992-2-jean-philippe@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=jean-philippe@linaro.org; helo=mail-wm1-x32a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1732564830378019100 Content-Type: text/plain; charset="utf-8" The confidential guest support in KVM limits the number of registers that we can read and write. Split the get/put_registers function to prepare for it. Signed-off-by: Jean-Philippe Brucker --- target/arm/kvm.c | 30 ++++++++++++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-) diff --git a/target/arm/kvm.c b/target/arm/kvm.c index 440c3ac8c6..0c80992f7c 100644 --- a/target/arm/kvm.c +++ b/target/arm/kvm.c @@ -2062,7 +2062,7 @@ static int kvm_arch_put_sve(CPUState *cs) return 0; } =20 -int kvm_arch_put_registers(CPUState *cs, int level, Error **errp) +static int kvm_arm_put_core_regs(CPUState *cs, int level, Error **errp) { uint64_t val; uint32_t fpr; @@ -2165,6 +2165,19 @@ int kvm_arch_put_registers(CPUState *cs, int level, = Error **errp) return ret; } =20 + return 0; +} + +int kvm_arch_put_registers(CPUState *cs, int level, Error **errp) +{ + int ret; + ARMCPU *cpu =3D ARM_CPU(cs); + + ret =3D kvm_arm_put_core_regs(cs, level, errp); + if (ret) { + return ret; + } + write_cpustate_to_list(cpu, true); =20 if (!write_list_to_kvmstate(cpu, level)) { @@ -2246,7 +2259,7 @@ static int kvm_arch_get_sve(CPUState *cs) return 0; } =20 -int kvm_arch_get_registers(CPUState *cs, Error **errp) +static int kvm_arm_get_core_regs(CPUState *cs, Error **errp) { uint64_t val; unsigned int el; @@ -2349,6 +2362,19 @@ int kvm_arch_get_registers(CPUState *cs, Error **err= p) } vfp_set_fpcr(env, fpr); =20 + return 0; +} + +int kvm_arch_get_registers(CPUState *cs, Error **errp) +{ + int ret; + ARMCPU *cpu =3D ARM_CPU(cs); + + ret =3D kvm_arm_get_core_regs(cs, errp); + if (ret) { + return ret; + } + ret =3D kvm_get_vcpu_events(cpu); if (ret) { return ret; --=20 2.47.0