On 26.07.19 12:10, Andrew Cooper wrote:
* Add a dependency so the shim gets rebuilt when pvshim_defconfig changes.
* Default to the NULL scheduler now that it works with vcpu online/offline.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
---
CC: Jan Beulich <jbeul...@suse.com>
CC: Wei Liu <w...@xen.org>
CC: Roger Pau Monné <roger....@citrix.com>
CC: Juergen Gross <jgr...@suse.com>
CC: Dario Faggioli <dfaggi...@suse.com>
This patch depends on Dario's series, and cant go in until then.
Also RFC.
CC: Stefano Stabellini <sstabell...@kernel.org>
CC: Tamas K Lengyel <ta...@tklengyel.com>
I tried turning off MEM_ACCESS, but I can't get Kconfig to actually turn it
off in the build. What is the deal with MEM_ACCESS_ALWAYS_ON ? It makes it
impossible to turn MEM_ACCESS off, becaue it is selected by x86, which leaves
MEM_ACCESS enabled and unmodifiable.
modify arch/x86/Kconfig like:
- select MEM_ACCESS_ALWAYS_ON
+ select MEM_ACCESS_ALWAYS_ON if !PV_SHIM_EXCLUSIVE
???
Juergen
---
tools/firmware/xen-dir/Makefile | 2 +-
xen/arch/x86/configs/pvshim_defconfig | 5 ++++-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/firmware/xen-dir/Makefile b/tools/firmware/xen-dir/Makefile
index 83597f0017..7435421251 100644
--- a/tools/firmware/xen-dir/Makefile
+++ b/tools/firmware/xen-dir/Makefile
@@ -41,7 +41,7 @@ linkfarm.stamp: $(DEP_DIRS) $(DEP_FILES) FORCE
$(D): linkfarm.stamp
$(MAKE) -C $(D)/xen distclean
-$(D)/xen/.config: $(D)
+$(D)/xen/.config: $(D) $(D)/xen/arch/x86/configs/pvshim_defconfig
$(MAKE) -C $(@D) KBUILD_DEFCONFIG=pvshim_defconfig XEN_CONFIG_EXPERT=y
defconfig
xen-shim: $(D)/xen/.config
diff --git a/xen/arch/x86/configs/pvshim_defconfig
b/xen/arch/x86/configs/pvshim_defconfig
index 9710aa6238..329aaf9029 100644
--- a/xen/arch/x86/configs/pvshim_defconfig
+++ b/xen/arch/x86/configs/pvshim_defconfig
@@ -5,6 +5,7 @@ CONFIG_PVH_GUEST=y
CONFIG_PV_SHIM=y
CONFIG_PV_SHIM_EXCLUSIVE=y
CONFIG_NR_CPUS=32
+CONFIG_SCHED_NULL=y
# Disable features not used by the PV shim
# CONFIG_SHADOW_PAGING is not set
# CONFIG_BIGMEM is not set
@@ -13,10 +14,12 @@ CONFIG_NR_CPUS=32
# CONFIG_KEXEC is not set
# CONFIG_XENOPROF is not set
# CONFIG_XSM is not set
+# CONFIG_SCHED_CREDIT is not set
# CONFIG_SCHED_CREDIT2 is not set
# CONFIG_SCHED_RTDS is not set
# CONFIG_SCHED_ARINC653 is not set
-# CONFIG_SCHED_NULL is not set
# CONFIG_LIVEPATCH is not set
# CONFIG_SUPPRESS_DUPLICATE_SYMBOL_WARNINGS is not set
# CONFIG_DEBUG is not set
+# CONFIG_MEM_ACCESS_ALWAYS_ON is not set
+# CONFIG_MEM_ACCESS is not set
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