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authorJason Andryuk <jandryuk@gmail.com>2020-10-14 13:53:40 -0400
committerJuergen Gross <jgross@suse.com>2020-12-16 07:55:05 +0100
commit34aff14580d1b02971adfd63be994f9c045919aa (patch)
treeac30c73ee98c711ebc3323d63c78b7c153cb44f8
parente34ff4cda2322e42d4815e042d5a3b46b51c41c4 (diff)
xen: Remove Xen PVH/PVHVM dependency on PCI
A Xen PVH domain doesn't have a PCI bus or devices, so it doesn't need PCI support built in. Currently, XEN_PVH depends on XEN_PVHVM which depends on PCI. Introduce XEN_PVHVM_GUEST as a toplevel item and change XEN_PVHVM to a hidden variable. This allows XEN_PVH to depend on XEN_PVHVM without PCI while XEN_PVHVM_GUEST depends on PCI. In drivers/xen, compile platform-pci depending on XEN_PVHVM_GUEST since that pulls in the PCI dependency for linking. Signed-off-by: Jason Andryuk <jandryuk@gmail.com> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20201014175342.152712-2-jandryuk@gmail.com Signed-off-by: Juergen Gross <jgross@suse.com>
-rw-r--r--arch/x86/xen/Kconfig18
-rw-r--r--drivers/xen/Makefile2
2 files changed, 13 insertions, 7 deletions
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 218acbd5c7a0..b75007eb4ec4 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -39,16 +39,20 @@ config XEN_DOM0
Support running as a Xen PV Dom0 guest.
config XEN_PVHVM
- bool "Xen PVHVM guest support"
- default y
- depends on XEN && PCI && X86_LOCAL_APIC
- help
- Support running as a Xen PVHVM guest.
+ def_bool y
+ depends on XEN && X86_LOCAL_APIC
config XEN_PVHVM_SMP
def_bool y
depends on XEN_PVHVM && SMP
+config XEN_PVHVM_GUEST
+ bool "Xen PVHVM guest support"
+ default y
+ depends on XEN_PVHVM && PCI
+ help
+ Support running as a Xen PVHVM guest.
+
config XEN_512GB
bool "Limit Xen pv-domain memory to 512GB"
depends on XEN_PV
@@ -76,7 +80,9 @@ config XEN_DEBUG_FS
Enabling this option may incur a significant performance overhead.
config XEN_PVH
- bool "Support for running as a Xen PVH guest"
+ bool "Xen PVH guest support"
depends on XEN && XEN_PVHVM && ACPI
select PVH
def_bool n
+ help
+ Support for running as a Xen PVH guest.
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index babdca808861..c3621b9f4012 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -21,7 +21,7 @@ obj-$(CONFIG_XEN_GNTDEV) += xen-gntdev.o
obj-$(CONFIG_XEN_GRANT_DEV_ALLOC) += xen-gntalloc.o
obj-$(CONFIG_XENFS) += xenfs/
obj-$(CONFIG_XEN_SYS_HYPERVISOR) += sys-hypervisor.o
-obj-$(CONFIG_XEN_PVHVM) += platform-pci.o
+obj-$(CONFIG_XEN_PVHVM_GUEST) += platform-pci.o
obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o
obj-$(CONFIG_XEN_MCE_LOG) += mcelog.o
obj-$(CONFIG_XEN_PCIDEV_BACKEND) += xen-pciback/