{"id":2215834,"url":"http://patchwork.ozlabs.org/api/patches/2215834/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260325081314.57089-1-yang.yicong@picoheart.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","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":"<20260325081314.57089-1-yang.yicong@picoheart.com>","list_archive_url":null,"date":"2026-03-25T08:13:14","name":"hw/riscv/virt-acpi-build.c: Use kvm timer frequency when kvm enabled","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"b431d43d7973d82922e8d7f8593a491b3746f4c5","submitter":{"id":92967,"url":"http://patchwork.ozlabs.org/api/people/92967/?format=json","name":"Yicong Yang","email":"yang.yicong@picoheart.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260325081314.57089-1-yang.yicong@picoheart.com/mbox/","series":[{"id":497433,"url":"http://patchwork.ozlabs.org/api/series/497433/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=497433","date":"2026-03-25T08:13:14","name":"hw/riscv/virt-acpi-build.c: Use kvm timer frequency when kvm enabled","version":1,"mbox":"http://patchwork.ozlabs.org/series/497433/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2215834/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2215834/checks/","tags":{},"related":[],"headers":{"Return-Path":"","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) header.d=picoheart-com.20200927.dkim.feishu.cn\n header.i=@picoheart-com.20200927.dkim.feishu.cn header.a=rsa-sha256\n header.s=s1 header.b=IzA9XWZW;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Wed, 25 Mar 2026 04:13:47 -0400","from G9WYR9K0VW.bytedance.net ([61.141.241.110]) by smtp.feishu.cn\n with ESMTPS; Wed, 25 Mar 2026 16:13:27 +0800"],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n s=s1; d=picoheart-com.20200927.dkim.feishu.cn; t=1774426410;\n h=from:subject:mime-version:from:date:message-id:subject:to:cc:\n reply-to:content-type:mime-version:in-reply-to:message-id;\n bh=6vj+2ITOA7jN/XQQmNwNxDhcTvSlDUolwOSEZc+CPx4=;\n b=IzA9XWZWUx/fQCkveUtelu+z7lBRujzBDRETrIjHlZIso/Fcw3nu1O7uHGP17V97Z7J3cA\n /ZpxHvzXkXLHeZ18G7MjURo2LQXgaPaiHN7PbM4YQx2f5tP8mLryYbMv4BgyJhGm4BNwAd\n 8HqiOrbVNqWuyyCPox9fgoCfHrUB1O0y1yiA93ooMwatVmci0/m7luEiyitRBaFnuZUldK\n hfjVLE4pjrQVtxeKiaXdkJSNmFlGEdUCaAK3eXVKIuTVVqPjbhm5yIja9Mww6my7UNgRmz\n ovhjZy/lWeh/aQa+kPUj80nLeSiHYiFPM1N0j5//ZyKNKjgQzZ/qPZu0phepfg==","Cc":", ,\n , ,\n \"Yicong Yang\" ","Subject":"[PATCH] hw/riscv/virt-acpi-build.c: Use kvm timer frequency when kvm\n enabled","Content-Type":"text/plain; charset=UTF-8","Date":"Wed, 25 Mar 2026 16:13:14 +0800","Message-Id":"<20260325081314.57089-1-yang.yicong@picoheart.com>","X-Lms-Return-Path":"","X-Original-From":"Yicong Yang ","To":", ,\n ","From":"\"Yicong Yang\" ","Mime-Version":"1.0","Content-Transfer-Encoding":"7bit","X-Mailer":"git-send-email 2.50.1","Received-SPF":"pass client-ip=209.127.231.18;\n envelope-from=yang.yicong@picoheart.com; helo=va-2-18.ptr.blmpb.com","X-Spam_score_int":"-18","X-Spam_score":"-1.9","X-Spam_bar":"-","X-Spam_report":"(-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-Mailman-Approved-At":"Wed, 25 Mar 2026 08:33:13 -0400","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"The timer frequency is decided by the host(kvm) rather than a fixed\nRISCV_ACLINT_DEFAULT_TIMEBASE_FREQ on kvm accelerated VM. So build\nRCHT with KVM provided timer frequency if KVM is enabled, just like\nhow we build the timer node on DT based VM.\n\nFixes: ebfd39289370 (\"hw/riscv/virt: virt-acpi-build.c: Add RHCT Table\")\nSigned-off-by: Yicong Yang \n---\n hw/riscv/virt-acpi-build.c | 7 ++++++-\n 1 file changed, 6 insertions(+), 1 deletion(-)","diff":"diff --git a/hw/riscv/virt-acpi-build.c b/hw/riscv/virt-acpi-build.c\nindex f1406cb68339..fd6ca5dbc4ff 100644\n--- a/hw/riscv/virt-acpi-build.c\n+++ b/hw/riscv/virt-acpi-build.c\n@@ -35,9 +35,11 @@\n #include \"hw/riscv/virt.h\"\n #include \"hw/riscv/numa.h\"\n #include \"hw/virtio/virtio-acpi.h\"\n+#include \"kvm/kvm_riscv.h\"\n #include \"migration/vmstate.h\"\n #include \"qapi/error.h\"\n #include \"qemu/error-report.h\"\n+#include \"system/kvm.h\"\n #include \"system/reset.h\"\n \n #define ACPI_BUILD_TABLE_SIZE 0x20000\n@@ -296,7 +298,10 @@ static void build_rhct(GArray *table_data,\n \n /* Time Base Frequency */\n build_append_int_noprefix(table_data,\n- RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, 8);\n+ kvm_enabled() ?\n+ kvm_riscv_get_timebase_frequency(&s->soc->harts[0]) :\n+ RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ,\n+ 8);\n \n /* ISA + N hart info */\n num_rhct_nodes = 1 + ms->smp.cpus;\n","prefixes":[]}