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[PATCH 2/3] x86/pv-shim: don't even allow enabling GRANT_TABLE
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 6 Dec 2022 15:30:19 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Tue, 06 Dec 2022 14:30:25 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Grant table code is unused in shim mode, so there's no point in
building it in the first place for shim-exclusive mode.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
--- a/xen/arch/x86/configs/pvshim_defconfig
+++ b/xen/arch/x86/configs/pvshim_defconfig
@@ -9,7 +9,6 @@ CONFIG_EXPERT=y
# Disable features not used by the PV shim
# CONFIG_XEN_SHSTK is not set
# CONFIG_XEN_IBT is not set
-# CONFIG_GRANT_TABLE is not set
# CONFIG_HYPFS is not set
# CONFIG_BIGMEM is not set
# CONFIG_KEXEC is not set
--- a/xen/common/Kconfig
+++ b/xen/common/Kconfig
@@ -14,6 +14,7 @@ config CORE_PARKING
config GRANT_TABLE
bool "Grant table support" if EXPERT
default y
+ depends on !PV_SHIM_EXCLUSIVE
---help---
Grant table provides a generic mechanism to memory sharing
between domains. This shared memory interface underpins the
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