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GET /api/patches/2196191/?format=api
{ "id": 2196191, "url": "http://patchwork.ozlabs.org/api/patches/2196191/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260213034556.13471-6-mohamed@unpredictable.fr/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260213034556.13471-6-mohamed@unpredictable.fr>", "list_archive_url": null, "date": "2026-02-13T03:45:48", "name": "[v2,05/10] whpx: move whpx_get_reg/whpx_set_reg to generic code", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "7ba7748f97b104d3fc4d564b2cd1300fe9eee106", "submitter": { "id": 91318, "url": "http://patchwork.ozlabs.org/api/people/91318/?format=api", "name": "Mohamed Mediouni", "email": "mohamed@unpredictable.fr" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260213034556.13471-6-mohamed@unpredictable.fr/mbox/", "series": [ { "id": 492055, "url": "http://patchwork.ozlabs.org/api/series/492055/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492055", "date": "2026-02-13T03:45:43", "name": "whpx: x86 updates (2026-02)", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/492055/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2196191/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2196191/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) 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bh=be0nJ130zvvK9XI/bsScdXF1W7wGDBAIgGEUgggxqUo=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=FKnzeCtpexctX61PshjrHApKNvROlo7wBjBMGdEWUDtR8qPSCZCqON6Rw7MQhuZ3mk/6iitqyUmyXUoBytXO3/ClTcTcxYOU6tk+d+wNQvd77tYU9Gm3tw79mDBNFURlxX0xk6uj+6t2g+3Z7GkZlLjLflGtg1bqu8x8cQzmYgxU+5dijH8PiYzZ3X+RB29l4sMjROPsc9ouIy1WXQXKXZnoCJ1/YDE0h9uIL564QlIfmdaFH7plpf6FL38FABovJn7Ttid0a+SQorKvJHp/1+kTGFnvi7IT0QMGo8xPav/H8kvbngqRYjNtakMjm0fAH0bkT784uNJ3yp0U5clfbw==", "mail-alias-created-date": "1752046281608", "From": "Mohamed Mediouni <mohamed@unpredictable.fr>", "To": "qemu-devel@nongnu.org", "Cc": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>,\n Magnus Kulke <magnuskulke@linux.microsoft.com>, =?utf-8?q?Philippe_Mathieu-?=\n\t=?utf-8?q?Daud=C3=A9?= <philmd@linaro.org>,\n Bernhard Beschow <shentey@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>,\n Mohamed Mediouni <mohamed@unpredictable.fr>, Wei Liu <wei.liu@kernel.org>,\n Pedro Barbuda <pbarbuda@microsoft.com>, Cameron Esfahani <dirty@apple.com>,\n Peter Maydell <peter.maydell@linaro.org>,\n Phil Dennis-Jordan <phil@philjordan.eu>, Zhao Liu <zhao1.liu@intel.com>,\n Roman Bolshakov <rbolshakov@ddn.com>,\n =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= <berrange@redhat.com>", "Subject": "[PATCH v2 05/10] whpx: move whpx_get_reg/whpx_set_reg to generic code", "Date": "Fri, 13 Feb 2026 04:45:48 +0100", "Message-ID": "<20260213034556.13471-6-mohamed@unpredictable.fr>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260213034556.13471-1-mohamed@unpredictable.fr>", "References": "<20260213034556.13471-1-mohamed@unpredictable.fr>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-ORIG-GUID": "VBiiheajr493pI2umY_Ygn5mD8bRoSI-", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMjEzMDAyNSBTYWx0ZWRfXzvqWZorHAYls\n NMsD3d5Sj6EeGWkhhn29nQeidsMsKaYxmZJqbpmFmPEcBFjO9QA9CEBcK23ER+ynCEVrk6MQIAs\n wNaRKMGBZx+UleeKtkP1uHJAnkAWSAGcVeGF6Xxy3u3OmOIZh90vRu2dFkhgz/bEYVbMMGz9kvq\n 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helo=outbound.pv.icloud.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "These will be used in the next commit on the x86_64 backend too.\nAlso move flush_cpu_state as it's used by get_reg/set_reg and the arm64 code.\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\n---\n accel/whpx/whpx-common.c | 35 +++++++++++++++++++++++++++++++++++\n include/system/whpx-common.h | 3 +++\n target/arm/whpx/whpx-all.c | 35 -----------------------------------\n 3 files changed, 38 insertions(+), 35 deletions(-)", "diff": "diff --git a/accel/whpx/whpx-common.c b/accel/whpx/whpx-common.c\nindex c57a0d3f0f..c2263c2496 100644\n--- a/accel/whpx/whpx-common.c\n+++ b/accel/whpx/whpx-common.c\n@@ -46,6 +46,41 @@ static HMODULE hWinHvEmulation;\n struct whpx_state whpx_global;\n struct WHPDispatch whp_dispatch;\n \n+void flush_cpu_state(CPUState *cpu)\n+{\n+ if (cpu->vcpu_dirty) {\n+ whpx_set_registers(cpu, WHPX_SET_RUNTIME_STATE);\n+ cpu->vcpu_dirty = false;\n+ }\n+}\n+\n+void whpx_get_reg(CPUState *cpu, WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE* val)\n+{\n+ struct whpx_state *whpx = &whpx_global;\n+ HRESULT hr;\n+\n+ flush_cpu_state(cpu);\n+\n+ hr = whp_dispatch.WHvGetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,\n+ ®, 1, val);\n+\n+ if (FAILED(hr)) {\n+ error_report(\"WHPX: Failed to get register %08x, hr=%08lx\", reg, hr);\n+ }\n+}\n+\n+void whpx_set_reg(CPUState *cpu, WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE val)\n+{\n+ struct whpx_state *whpx = &whpx_global;\n+ HRESULT hr;\n+ hr = whp_dispatch.WHvSetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,\n+ ®, 1, &val);\n+\n+ if (FAILED(hr)) {\n+ error_report(\"WHPX: Failed to set register %08x, hr=%08lx\", reg, hr);\n+ }\n+}\n+\n /* Tries to find a breakpoint at the specified address. */\n struct whpx_breakpoint *whpx_lookup_breakpoint_by_addr(uint64_t address)\n {\ndiff --git a/include/system/whpx-common.h b/include/system/whpx-common.h\nindex b86fe9db6e..5bce33e336 100644\n--- a/include/system/whpx-common.h\n+++ b/include/system/whpx-common.h\n@@ -20,6 +20,9 @@ int whpx_first_vcpu_starting(CPUState *cpu);\n int whpx_last_vcpu_stopping(CPUState *cpu);\n void whpx_memory_init(void);\n struct whpx_breakpoint *whpx_lookup_breakpoint_by_addr(uint64_t address);\n+void flush_cpu_state(CPUState *cpu);\n+void whpx_get_reg(CPUState *cpu, WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE* val);\n+void whpx_set_reg(CPUState *cpu, WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE val);\n \n /* On x64: same as WHvX64ExceptionTypeDebugTrapOrFault */\n #define WHPX_INTERCEPT_DEBUG_TRAPS 1\ndiff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c\nindex d52580a082..c8d71a252e 100644\n--- a/target/arm/whpx/whpx-all.c\n+++ b/target/arm/whpx/whpx-all.c\n@@ -274,14 +274,6 @@ static struct whpx_sreg_match whpx_sreg_match[] = {\n { WHvArm64RegisterSpEl1, ENCODE_AA64_CP_REG(4, 1, 3, 4, 0) },\n };\n \n-static void flush_cpu_state(CPUState *cpu)\n-{\n- if (cpu->vcpu_dirty) {\n- whpx_set_registers(cpu, WHPX_SET_RUNTIME_STATE);\n- cpu->vcpu_dirty = false;\n- }\n-}\n-\n HRESULT whpx_set_exception_exit_bitmap(UINT64 exceptions)\n {\n if (exceptions != 0) {\n@@ -314,33 +306,6 @@ void whpx_arch_destroy_vcpu(CPUState *cpu)\n /* currently empty on Arm */\n }\n \n-static void whpx_get_reg(CPUState *cpu, WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE* val)\n-{\n- struct whpx_state *whpx = &whpx_global;\n- HRESULT hr;\n-\n- flush_cpu_state(cpu);\n-\n- hr = whp_dispatch.WHvGetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,\n- ®, 1, val);\n-\n- if (FAILED(hr)) {\n- error_report(\"WHPX: Failed to get register %08x, hr=%08lx\", reg, hr);\n- }\n-}\n-\n-static void whpx_set_reg(CPUState *cpu, WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE val)\n-{\n- struct whpx_state *whpx = &whpx_global;\n- HRESULT hr;\n- hr = whp_dispatch.WHvSetVirtualProcessorRegisters(whpx->partition, cpu->cpu_index,\n- ®, 1, &val);\n-\n- if (FAILED(hr)) {\n- error_report(\"WHPX: Failed to set register %08x, hr=%08lx\", reg, hr);\n- }\n-}\n-\n static void whpx_get_global_reg(WHV_REGISTER_NAME reg, WHV_REGISTER_VALUE *val)\n {\n struct whpx_state *whpx = &whpx_global;\n", "prefixes": [ "v2", "05/10" ] }