From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
kvmarm@lists.cs.columbia.edu, james.morse@arm.com,
marc.zyngier@arm.com, cdall@kernel.org, eric.auger@redhat.com,
julien.grall@arm.com, will.deacon@arm.com,
catalin.marinas@arm.com, punit.agrawal@arm.com,
qemu-devel@nongnu.org, Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [kvmtool test PATCH 24/24] kvmtool: arm: Add support for creating VM with PA size
Date: Fri, 29 Jun 2018 12:15:44 +0100 [thread overview]
Message-ID: <1530270944-11351-25-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1530270944-11351-1-git-send-email-suzuki.poulose@arm.com>
Specify the physical size for the VM encoded in the vm type.
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
arm/include/arm-common/kvm-arch.h | 6 +++++-
arm/kvm.c | 22 ++++++++++++++++++++++
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/arm/include/arm-common/kvm-arch.h b/arm/include/arm-common/kvm-arch.h
index b29b4b1..d77f3ac 100644
--- a/arm/include/arm-common/kvm-arch.h
+++ b/arm/include/arm-common/kvm-arch.h
@@ -44,7 +44,11 @@
#define KVM_IRQ_OFFSET GIC_SPI_IRQ_BASE
-#define KVM_VM_TYPE 0
+extern unsigned long kvm_arm_type;
+extern void kvm__arch_init_hyp(struct kvm *kvm);
+
+#define KVM_VM_TYPE kvm_arm_type
+#define kvm__arch_init_hyp kvm__arch_init_hyp
#define VIRTIO_DEFAULT_TRANS(kvm) \
((kvm)->cfg.arch.virtio_trans_pci ? VIRTIO_PCI : VIRTIO_MMIO)
diff --git a/arm/kvm.c b/arm/kvm.c
index 5701d41..b1969be 100644
--- a/arm/kvm.c
+++ b/arm/kvm.c
@@ -11,6 +11,8 @@
#include <linux/kvm.h>
#include <linux/sizes.h>
+unsigned long kvm_arm_type;
+
struct kvm_ext kvm_req_ext[] = {
{ DEFINE_KVM_EXT(KVM_CAP_IRQCHIP) },
{ DEFINE_KVM_EXT(KVM_CAP_ONE_REG) },
@@ -18,6 +20,26 @@ struct kvm_ext kvm_req_ext[] = {
{ 0, 0 },
};
+#ifndef KVM_ARM_GET_MAX_VM_PHYS_SHIFT
+#define KVM_ARM_GET_MAX_VM_PHYS_SHIFT _IO(KVMIO, 0x0b)
+#endif
+
+void kvm__arch_init_hyp(struct kvm *kvm)
+{
+ int max_ipa;
+
+ max_ipa = ioctl(kvm->sys_fd, KVM_ARM_GET_MAX_VM_PHYS_SHIFT);
+ if (max_ipa < 0)
+ max_ipa = 40;
+ if (!kvm->cfg.arch.phys_shift)
+ kvm->cfg.arch.phys_shift = 40;
+ if (kvm->cfg.arch.phys_shift > max_ipa)
+ die("Requested PA size (%u) is not supported by the host (%ubits)\n",
+ kvm->cfg.arch.phys_shift, max_ipa);
+ if (kvm->cfg.arch.phys_shift != 40)
+ kvm_arm_type = kvm->cfg.arch.phys_shift;
+}
+
bool kvm__arch_cpu_supports_vm(void)
{
/* The KVM capability check is enough. */
--
2.7.4
next prev parent reply other threads:[~2018-06-29 11:17 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-29 11:15 [PATCH v3 00/20] arm64: Dynamic & 52bit IPA support Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 01/20] virtio: mmio-v1: Validate queue PFN Suzuki K Poulose
2018-06-29 17:42 ` Michael S. Tsirkin
2018-07-03 8:04 ` Suzuki K Poulose
2018-07-04 5:37 ` Michael S. Tsirkin
2018-06-29 11:15 ` [PATCH v3 02/20] virtio: pci-legacy: Validate queue pfn Suzuki K Poulose
2018-06-29 17:42 ` Michael S. Tsirkin
2018-06-29 11:15 ` [PATCH v3 03/20] arm64: Add a helper for PARange to physical shift conversion Suzuki K Poulose
2018-06-29 14:50 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 04/20] kvm: arm64: Clean up VTCR_EL2 initialisation Suzuki K Poulose
2018-06-29 14:50 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 05/20] kvm: arm/arm64: Fix stage2_flush_memslot for 4 level page table Suzuki K Poulose
2018-06-29 14:50 ` Auger Eric
2018-07-02 9:59 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 06/20] kvm: arm/arm64: Remove spurious WARN_ON Suzuki K Poulose
2018-06-29 14:51 ` Auger Eric
2018-07-02 10:01 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 07/20] kvm: arm/arm64: Prepare for VM specific stage2 translations Suzuki K Poulose
2018-07-02 10:12 ` Marc Zyngier
2018-07-02 10:25 ` Suzuki K Poulose
2018-07-02 10:51 ` Auger Eric
2018-07-02 10:59 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 08/20] kvm: arm/arm64: Abstract stage2 pgd table allocation Suzuki K Poulose
2018-07-02 15:01 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 09/20] kvm: arm64: Make stage2 page table layout dynamic Suzuki K Poulose
2018-07-02 10:57 ` Suzuki K Poulose
2018-07-02 12:14 ` Auger Eric
2018-07-02 13:24 ` Suzuki K Poulose
2018-07-02 14:46 ` [Qemu-devel] " Auger Eric
2018-06-29 11:15 ` [PATCH v3 10/20] kvm: arm64: Dynamic configuration of VTTBR mask Suzuki K Poulose
2018-07-02 14:41 ` Auger Eric
2018-07-03 11:54 ` Suzuki K Poulose
2018-07-04 8:24 ` Auger Eric
2018-07-04 8:29 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 11/20] kvm: arm64: Helper for computing VTCR_EL2.SL0 Suzuki K Poulose
2018-07-02 14:59 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 12/20] kvm: arm64: Add helper for loading the stage2 setting for a VM Suzuki K Poulose
2018-07-02 19:13 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 13/20] kvm: arm64: Configure VTCR per VM Suzuki K Poulose
2018-07-02 12:16 ` Marc Zyngier
2018-07-03 10:48 ` Suzuki K Poulose
2018-07-03 10:58 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 14/20] kvm: arm/arm64: Expose supported physical address limit for VM Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 15/20] kvm: arm/arm64: Allow tuning the physical address size " Suzuki K Poulose
2018-07-02 13:13 ` Marc Zyngier
2018-07-02 13:31 ` Suzuki K Poulose
2018-07-04 15:51 ` Will Deacon
2018-07-04 22:03 ` Suzuki K Poulose
2018-07-06 13:49 ` Suzuki K Poulose
2018-07-06 15:09 ` Marc Zyngier
2018-07-06 16:39 ` Suzuki K Poulose
2018-07-09 11:23 ` Dave Martin
2018-07-09 12:29 ` Marc Zyngier
2018-07-09 13:37 ` Dave Martin
2018-07-10 16:38 ` Suzuki K Poulose
2018-07-10 17:03 ` Dave Martin
2018-07-11 9:05 ` Suzuki K Poulose
2018-07-11 10:38 ` Dave Martin
2018-06-29 11:15 ` [PATCH v3 16/20] kvm: arm64: Switch to per VM IPA limit Suzuki K Poulose
2018-07-02 13:32 ` Marc Zyngier
2018-07-02 13:53 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 17/20] vgic: Add support for 52bit guest physical address Suzuki K Poulose
2018-07-04 8:09 ` Auger Eric
2018-06-29 11:15 ` [PATCH v3 18/20] kvm: arm64: Add support for handling 52bit IPA Suzuki K Poulose
2018-07-02 13:43 ` Marc Zyngier
2018-06-29 11:15 ` [PATCH v3 19/20] kvm: arm64: Allow IPA size supported by the system Suzuki K Poulose
2018-07-02 13:50 ` Marc Zyngier
2018-07-02 13:54 ` Suzuki K Poulose
2018-06-29 11:15 ` [PATCH v3 20/20] kvm: arm64: Fall back to normal stage2 entry level Suzuki K Poulose
2018-06-29 11:15 ` [kvmtool test PATCH 21/24] kvmtool: Allow backends to run checks on the KVM device fd Suzuki K Poulose
2018-06-29 11:15 ` [kvmtool test PATCH 22/24] kvmtool: arm64: Add support for guest physical address size Suzuki K Poulose
2018-07-04 14:09 ` Will Deacon
2018-07-04 15:00 ` Julien Grall
2018-07-04 15:52 ` Will Deacon
2018-07-05 12:47 ` Julien Grall
2018-07-05 13:20 ` Marc Zyngier
2018-07-05 13:46 ` Auger Eric
2018-07-05 14:12 ` Suzuki K Poulose
2018-07-05 14:15 ` Marc Zyngier
2018-07-05 14:37 ` Auger Eric
2018-06-29 11:15 ` [kvmtool test PATCH 23/24] kvmtool: arm64: Switch memory layout Suzuki K Poulose
2018-06-29 11:15 ` Suzuki K Poulose [this message]
2018-07-04 14:22 ` [kvmtool test PATCH 24/24] kvmtool: arm: Add support for creating VM with PA size Will Deacon
2018-07-04 14:41 ` Marc Zyngier
2018-07-04 15:51 ` Will Deacon
2018-07-05 7:51 ` Peter Maydell
2018-07-05 7:58 ` Auger Eric
2018-07-04 15:58 ` Suzuki K Poulose
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=1530270944-11351-25-git-send-email-suzuki.poulose@arm.com \
--to=suzuki.poulose@arm.com \
--cc=catalin.marinas@arm.com \
--cc=cdall@kernel.org \
--cc=eric.auger@redhat.com \
--cc=james.morse@arm.com \
--cc=julien.grall@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marc.zyngier@arm.com \
--cc=punit.agrawal@arm.com \
--cc=qemu-devel@nongnu.org \
--cc=will.deacon@arm.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).