From: Yifei Jiang <jiangyifei@huawei.com>
To: <qemu-devel@nongnu.org>, <qemu-riscv@nongnu.org>
Cc: <kvm-riscv@lists.infradead.org>, <kvm@vger.kernel.org>,
<libvir-list@redhat.com>, <anup.patel@wdc.com>,
<palmer@dabbelt.com>, <Alistair.Francis@wdc.com>,
<sagark@eecs.berkeley.edu>, <kbastian@mail.uni-paderborn.de>,
<bin.meng@windriver.com>, <fanliang@huawei.com>,
<wu.wubin@huawei.com>, <zhang.zhanghailiang@huawei.com>,
<yinyipeng1@huawei.com>, Yifei Jiang <jiangyifei@huawei.com>
Subject: [PATCH RFC v5 03/12] target/riscv: Implement function kvm_arch_init_vcpu
Date: Mon, 12 Apr 2021 14:52:37 +0800 [thread overview]
Message-ID: <20210412065246.1853-4-jiangyifei@huawei.com> (raw)
In-Reply-To: <20210412065246.1853-1-jiangyifei@huawei.com>
Get isa info from kvm while kvm init.
Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
---
target/riscv/kvm.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c
index 687dd4b621..0d924be33f 100644
--- a/target/riscv/kvm.c
+++ b/target/riscv/kvm.c
@@ -38,6 +38,18 @@
#include "qemu/log.h"
#include "hw/loader.h"
+static __u64 kvm_riscv_reg_id(CPURISCVState *env, __u64 type, __u64 idx)
+{
+ __u64 id = KVM_REG_RISCV | type | idx;
+
+ if (riscv_cpu_is_32bit(env)) {
+ id |= KVM_REG_SIZE_U32;
+ } else {
+ id |= KVM_REG_SIZE_U64;
+ }
+ return id;
+}
+
const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
KVM_CAP_LAST_INFO
};
@@ -79,7 +91,20 @@ void kvm_arch_init_irq_routing(KVMState *s)
int kvm_arch_init_vcpu(CPUState *cs)
{
- return 0;
+ int ret = 0;
+ target_ulong isa;
+ RISCVCPU *cpu = RISCV_CPU(cs);
+ CPURISCVState *env = &cpu->env;
+ __u64 id;
+
+ id = kvm_riscv_reg_id(env, KVM_REG_RISCV_CONFIG, KVM_REG_RISCV_CONFIG_REG(isa));
+ ret = kvm_get_one_reg(cs, id, &isa);
+ if (ret) {
+ return ret;
+ }
+ env->misa = isa | RVXLEN;
+
+ return ret;
}
int kvm_arch_msi_data_to_gsi(uint32_t data)
--
2.19.1
next prev parent reply other threads:[~2021-04-12 6:53 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 6:52 [PATCH RFC v5 00/12] Add riscv kvm accel support Yifei Jiang
2021-04-12 6:52 ` [PATCH RFC v5 01/12] linux-header: Update linux/kvm.h Yifei Jiang
2021-04-12 6:52 ` [PATCH RFC v5 02/12] target/riscv: Add target/riscv/kvm.c to place the public kvm interface Yifei Jiang
2021-04-12 6:52 ` Yifei Jiang [this message]
2021-04-14 22:32 ` [PATCH RFC v5 03/12] target/riscv: Implement function kvm_arch_init_vcpu Alistair Francis
2021-04-12 6:52 ` [PATCH RFC v5 04/12] target/riscv: Implement kvm_arch_get_registers Yifei Jiang
2021-04-14 22:39 ` Alistair Francis
2021-04-12 6:52 ` [PATCH RFC v5 05/12] target/riscv: Implement kvm_arch_put_registers Yifei Jiang
2021-04-14 22:46 ` Alistair Francis
2021-04-12 6:52 ` [PATCH RFC v5 06/12] target/riscv: Support start kernel directly by KVM Yifei Jiang
2021-04-14 22:48 ` Alistair Francis
2021-04-12 6:52 ` [PATCH RFC v5 07/12] hw/riscv: PLIC update external interrupt by KVM when kvm enabled Yifei Jiang
2021-04-14 22:50 ` Alistair Francis
2021-04-30 4:53 ` Anup Patel
2021-05-06 7:59 ` Jiangyifei
2021-04-12 6:52 ` [PATCH RFC v5 08/12] target/riscv: Handle KVM_EXIT_RISCV_SBI exit Yifei Jiang
2021-04-12 6:52 ` [PATCH RFC v5 09/12] target/riscv: Add host cpu type Yifei Jiang
2021-04-14 22:33 ` Alistair Francis
2021-04-12 6:52 ` [PATCH RFC v5 10/12] target/riscv: Add kvm_riscv_get/put_regs_timer Yifei Jiang
2021-04-12 6:52 ` [PATCH RFC v5 11/12] target/riscv: Implement virtual time adjusting with vm state changing Yifei Jiang
2021-04-12 6:52 ` [PATCH RFC v5 12/12] target/riscv: Support virtual time context synchronization Yifei Jiang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210412065246.1853-4-jiangyifei@huawei.com \
--to=jiangyifei@huawei.com \
--cc=Alistair.Francis@wdc.com \
--cc=anup.patel@wdc.com \
--cc=bin.meng@windriver.com \
--cc=fanliang@huawei.com \
--cc=kbastian@mail.uni-paderborn.de \
--cc=kvm-riscv@lists.infradead.org \
--cc=kvm@vger.kernel.org \
--cc=libvir-list@redhat.com \
--cc=palmer@dabbelt.com \
--cc=qemu-devel@nongnu.org \
--cc=qemu-riscv@nongnu.org \
--cc=sagark@eecs.berkeley.edu \
--cc=wu.wubin@huawei.com \
--cc=yinyipeng1@huawei.com \
--cc=zhang.zhanghailiang@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).