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| author | Juergen Gross <jgross@suse.com> | 2018-08-28 09:40:21 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-09-03 16:50:35 +0200 |
| commit | c00a280a8efa4dc077596cf646bd50cbd13db3c8 (patch) | |
| tree | 9b4e09ea3e00b8c2f685f1e947d22fd95b167f65 | |
| parent | 5def7a4cd5bef80f7c997cf37c09022fa8c9cd76 (diff) | |
| download | linux-c00a280a8efa4dc077596cf646bd50cbd13db3c8.tar.gz linux-c00a280a8efa4dc077596cf646bd50cbd13db3c8.tar.bz2 linux-c00a280a8efa4dc077596cf646bd50cbd13db3c8.zip | |
x86/paravirt: Introduce new config option PARAVIRT_XXL
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>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Cc: virtualization@lists.linux-foundation.org
Cc: akataria@vmware.com
Cc: rusty@rustcorp.com.au
Cc: boris.ostrovsky@oracle.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/20180828074026.820-11-jgross@suse.com
| -rw-r--r-- | arch/x86/Kconfig | 4 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/misc.h | 1 | ||||
| -rw-r--r-- | arch/x86/mm/mem_encrypt_identity.c | 1 | ||||
| -rw-r--r-- | arch/x86/xen/Kconfig | 1 |
4 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 1a0be022f91d..6265b84f6386 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 |