From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org,
x86@kernel.org, virtualization@lists.linux-foundation.org
Cc: Juergen Gross <jgross@suse.com>,
boris.ostrovsky@oracle.com, rusty@rustcorp.com.au,
mingo@redhat.com, hpa@zytor.com, akataria@vmware.com,
tglx@linutronix.de
Subject: [PATCH v3 10/15] x86/paravirt: introduce new config option PARAVIRT_XXL
Date: Tue, 28 Aug 2018 09:40:21 +0200 [thread overview]
Message-ID: <20180828074026.820-11-jgross__47895.0441036888$1535441980$gmane$org@suse.com> (raw)
In-Reply-To: <20180828074026.820-1-jgross@suse.com>
A large amount of paravirt ops is used by Xen PV guests only. Add a new
config option PARAVIRT_XXL which is selected by XEN_PV. Later we can
put the Xen PV only paravirt ops under the PARAVIRT_XXL umbrella.
Since irq related paravirt ops are used only by VSMP and Xen PV, let
VSMP select PARAVIRT_XXL, too, in order to enable moving the irq ops
under PARAVIRT_XXL.
Signed-off-by: Juergen Gross <jgross@suse.com>
---
V3:
- let VSMP select PARAVIRT_XXL (Peter Zijlstra)
---
arch/x86/Kconfig | 4 ++++
arch/x86/boot/compressed/misc.h | 1 +
arch/x86/mm/mem_encrypt_identity.c | 1 +
arch/x86/xen/Kconfig | 1 +
4 files changed, 7 insertions(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c5ff296bc5d1..61dfdb694483 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -523,6 +523,7 @@ config X86_VSMP
bool "ScaleMP vSMP"
select HYPERVISOR_GUEST
select PARAVIRT
+ select PARAVIRT_XXL
depends on X86_64 && PCI
depends on X86_EXTENDED_PLATFORM
depends on SMP
@@ -754,6 +755,9 @@ config PARAVIRT
over full virtualization. However, when run without a hypervisor
the kernel is theoretically slower and slightly larger.
+config PARAVIRT_XXL
+ bool
+
config PARAVIRT_DEBUG
bool "paravirt-ops debugging"
depends on PARAVIRT && DEBUG_KERNEL
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index a423bdb42686..a1d5918765f3 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -9,6 +9,7 @@
* paravirt and debugging variants are added.)
*/
#undef CONFIG_PARAVIRT
+#undef CONFIG_PARAVIRT_XXL
#undef CONFIG_PARAVIRT_SPINLOCKS
#undef CONFIG_KASAN
diff --git a/arch/x86/mm/mem_encrypt_identity.c b/arch/x86/mm/mem_encrypt_identity.c
index 7ae36868aed2..a19ef1a416ff 100644
--- a/arch/x86/mm/mem_encrypt_identity.c
+++ b/arch/x86/mm/mem_encrypt_identity.c
@@ -27,6 +27,7 @@
* be extended when new paravirt and debugging variants are added.)
*/
#undef CONFIG_PARAVIRT
+#undef CONFIG_PARAVIRT_XXL
#undef CONFIG_PARAVIRT_SPINLOCKS
#include <linux/kernel.h>
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index c1f98f32c45f..dd92d7bd3613 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -18,6 +18,7 @@ config XEN_PV
bool "Xen PV guest support"
default y
depends on XEN
+ select PARAVIRT_XXL
select XEN_HAVE_PVMMU
select XEN_HAVE_VPMU
help
--
2.16.4
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next prev parent reply other threads:[~2018-08-28 7:40 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-28 7:40 [PATCH v3 00/15] x86/paravirt, xen: several cleanups Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` [PATCH v3 01/15] xen: move pv irq related functions under CONFIG_XEN_PV umbrella Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:54 ` [tip:x86/paravirt] x86/xen: Move " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 02/15] xen: move pv specific parts of arch/x86/xen/mmu.c to mmu_pv.c Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:55 ` [tip:x86/paravirt] x86/xen: Move " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 02/15] xen: move " Juergen Gross
2018-08-28 7:40 ` [PATCH v3 03/15] xen: link platform-pci-unplug.o only if CONFIG_XEN_PVHVM Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:56 ` [tip:x86/paravirt] x86/xen: Link " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 03/15] xen: link " Juergen Gross
2018-08-28 7:40 ` [PATCH v3 04/15] xen: add SPDX identifier in arch/x86/xen files Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:56 ` [tip:x86/paravirt] x86/xen: Add " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 05/15] x86/paravirt: make paravirt_patch_call() and paravirt_patch_jmp() static Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:57 ` [tip:x86/paravirt] x86/paravirt: Make " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 05/15] x86/paravirt: make " Juergen Gross
2018-08-28 7:40 ` [PATCH v3 06/15] x86/paravirt: remove clobbers parameter from paravirt patch functions Juergen Gross
2018-09-03 14:57 ` [tip:x86/paravirt] x86/paravirt: Remove " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 06/15] x86/paravirt: remove " Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` [PATCH v3 07/15] x86/paravirt: remove clobbers from struct paravirt_patch_site Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:58 ` [tip:x86/paravirt] x86/paravirt: Remove " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 08/15] x86/paravirt: use a single ops structure Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:58 ` [tip:x86/paravirt] x86/paravirt: Use " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 08/15] x86/paravirt: use " Juergen Gross
2018-08-28 7:40 ` [PATCH v3 09/15] x86/paravirt: remove unused paravirt bits Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 14:59 ` [tip:x86/paravirt] x86/paravirt: Remove " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 10/15] x86/paravirt: introduce new config option PARAVIRT_XXL Juergen Gross
2018-09-03 14:59 ` [tip:x86/paravirt] x86/paravirt: Introduce " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 10/15] x86/paravirt: introduce " Juergen Gross
2018-08-28 7:40 ` Juergen Gross [this message]
2018-08-28 7:40 ` [PATCH v3 11/15] x86/paravirt: move items in pv_info under PARAVIRT_XXL umbrella Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 15:00 ` [tip:x86/paravirt] x86/paravirt: Move " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 12/15] x86/paravirt: move the Xen-only pv_cpu_ops under the " Juergen Gross
2018-09-03 15:01 ` [tip:x86/paravirt] x86/paravirt: Move " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 12/15] x86/paravirt: move " Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` [PATCH v3 13/15] x86/paravirt: move the pv_irq_ops " Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 15:01 ` [tip:x86/paravirt] x86/paravirt: Move " tip-bot for Juergen Gross
2018-09-07 14:49 ` Borislav Petkov
2018-09-07 14:52 ` Juergen Gross
2018-09-07 14:54 ` Borislav Petkov
2018-08-28 7:40 ` [PATCH v3 14/15] x86/paravirt: move the Xen-only pv_mmu_ops " Juergen Gross
2018-09-03 15:02 ` [tip:x86/paravirt] x86/paravirt: Move " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 14/15] x86/paravirt: move " Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-08-28 7:40 ` [PATCH v3 15/15] x86/paravirt: remove unneeded mmu related paravirt ops bits Juergen Gross
2018-08-28 7:40 ` Juergen Gross
2018-09-03 15:02 ` [tip:x86/paravirt] x86/paravirt: Remove " tip-bot for Juergen Gross
2018-08-28 7:40 ` [PATCH v3 15/15] x86/paravirt: remove " Juergen Gross
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