From: Gavin Shan <gshan@redhat.com>
To: kvmarm@lists.cs.columbia.edu
Cc: linux-kernel@vger.kernel.org, maz@kernel.org, will@kernel.org,
pbonzini@redhat.com, james.morse@arm.com, mark.rutland@arm.com,
Jonathan.Cameron@huawei.com, shan.gavin@gmail.com
Subject: [PATCH v3 06/15] KVM: arm64: Add paravirtualization header files
Date: Fri, 7 May 2021 16:40:44 +0800 [thread overview]
Message-ID: <20210507084053.44407-7-gshan@redhat.com> (raw)
In-Reply-To: <20210507084053.44407-1-gshan@redhat.com>
We need put more stuff in the paravirtualization header files when
the asynchronous page fault is supported. The generic header files
can't meet the goal. This duplicate the generic header files to be
our platform specific header files. It's the preparatory work to
support the asynchronous page fault in the subsequent patches:
include/uapi/asm-generic/kvm_para.h
include/asm-generic/kvm_para.h
arch/arm64/include/uapi/asm/kvm_para.h
arch/arm64/include/asm/kvm_para.h
Signed-off-by: Gavin Shan <gshan@redhat.com>
---
arch/arm64/include/asm/kvm_para.h | 27 ++++++++++++++++++++++++++
arch/arm64/include/uapi/asm/Kbuild | 2 --
arch/arm64/include/uapi/asm/kvm_para.h | 5 +++++
3 files changed, 32 insertions(+), 2 deletions(-)
create mode 100644 arch/arm64/include/asm/kvm_para.h
create mode 100644 arch/arm64/include/uapi/asm/kvm_para.h
diff --git a/arch/arm64/include/asm/kvm_para.h b/arch/arm64/include/asm/kvm_para.h
new file mode 100644
index 000000000000..0ea481dd1c7a
--- /dev/null
+++ b/arch/arm64/include/asm/kvm_para.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ARM_KVM_PARA_H
+#define _ASM_ARM_KVM_PARA_H
+
+#include <uapi/asm/kvm_para.h>
+
+static inline bool kvm_check_and_clear_guest_paused(void)
+{
+ return false;
+}
+
+static inline unsigned int kvm_arch_para_features(void)
+{
+ return 0;
+}
+
+static inline unsigned int kvm_arch_para_hints(void)
+{
+ return 0;
+}
+
+static inline bool kvm_para_available(void)
+{
+ return false;
+}
+
+#endif /* _ASM_ARM_KVM_PARA_H */
diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
index 602d137932dc..f66554cd5c45 100644
--- a/arch/arm64/include/uapi/asm/Kbuild
+++ b/arch/arm64/include/uapi/asm/Kbuild
@@ -1,3 +1 @@
# SPDX-License-Identifier: GPL-2.0
-
-generic-y += kvm_para.h
diff --git a/arch/arm64/include/uapi/asm/kvm_para.h b/arch/arm64/include/uapi/asm/kvm_para.h
new file mode 100644
index 000000000000..cd212282b90c
--- /dev/null
+++ b/arch/arm64/include/uapi/asm/kvm_para.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_ARM_KVM_PARA_H
+#define _UAPI_ASM_ARM_KVM_PARA_H
+
+#endif /* _UAPI_ASM_ARM_KVM_PARA_H */
--
2.23.0
next prev parent reply other threads:[~2021-05-07 6:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-07 8:40 [PATCH v3 00/15] Support Asynchronous Page Fault Gavin Shan
2021-05-07 8:40 ` [PATCH v3 01/15] KVM: async_pf: Move struct kvm_async_pf around Gavin Shan
2021-05-07 8:40 ` [PATCH v3 02/15] KVM: async_pf: Add helper function to check completion queue Gavin Shan
2021-05-07 8:40 ` [PATCH v3 03/15] KVM: async_pf: Make GFN slot management generic Gavin Shan
2021-05-07 8:40 ` [PATCH v3 04/15] KVM: x86: Use generic async PF slot management Gavin Shan
2021-05-07 8:40 ` [PATCH v3 05/15] KVM: arm64: Export kvm_handle_user_mem_abort() Gavin Shan
2021-05-07 8:40 ` Gavin Shan [this message]
2021-05-07 8:40 ` [PATCH v3 07/15] KVM: arm64: Support page-not-present notification Gavin Shan
2021-05-07 8:40 ` [PATCH v3 08/15] KVM: arm64: Support page-ready notification Gavin Shan
2021-05-07 8:40 ` [PATCH v3 09/15] KVM: arm64: Support async PF hypercalls Gavin Shan
2021-05-07 8:40 ` [PATCH v3 10/15] KVM: arm64: Support async PF ioctl commands Gavin Shan
2021-05-07 8:40 ` [PATCH v3 11/15] KVM: arm64: Export async PF capability Gavin Shan
2021-05-07 8:40 ` [PATCH v3 12/15] arm64: Detect async PF para-virtualization feature Gavin Shan
2021-05-07 8:40 ` [PATCH v3 13/15] arm64: Reschedule process on aync PF Gavin Shan
2021-05-07 8:40 ` [PATCH v3 14/15] arm64: Enable async PF Gavin Shan
2021-05-07 8:40 ` [PATCH v3 15/15] KVM: arm64: Add async PF document Gavin Shan
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=20210507084053.44407-7-gshan@redhat.com \
--to=gshan@redhat.com \
--cc=Jonathan.Cameron@huawei.com \
--cc=james.morse@arm.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=maz@kernel.org \
--cc=pbonzini@redhat.com \
--cc=shan.gavin@gmail.com \
--cc=will@kernel.org \
/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).