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[xen staging] x86/pvshim: disable PDX compression in PV shim defconfig



commit e7c689a249ca6b8d14a077bb0f3311eaeda2ca19
Author:     Roger Pau Monne <roger.pau@xxxxxxxxxx>
AuthorDate: Fri Aug 29 09:43:38 2025 +0200
Commit:     Roger Pau Monne <roger.pau@xxxxxxxxxx>
CommitDate: Fri Aug 29 11:42:12 2025 +0200

    x86/pvshim: disable PDX compression in PV shim defconfig
    
    There's no need for PDX compression given the memory map provided by Xen
    to guests is contiguous, turn off the feature by default in the PV shim
    defconfig.
    
    Reported-by: Jan Beulich <jbeulich@xxxxxxxx>
    Fixes: c5c45bcbd6a1 ("pdx: introduce a new compression algorithm based on 
region offsets")
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/configs/pvshim_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/x86/configs/pvshim_defconfig 
b/xen/arch/x86/configs/pvshim_defconfig
index c58c29adb0..24f4e4857d 100644
--- a/xen/arch/x86/configs/pvshim_defconfig
+++ b/xen/arch/x86/configs/pvshim_defconfig
@@ -7,6 +7,7 @@ CONFIG_PV_SHIM_EXCLUSIVE=y
 CONFIG_NR_CPUS=32
 CONFIG_EXPERT=y
 # Disable features not used by the PV shim
+CONFIG_PDX_NONE=y
 # CONFIG_XEN_SHSTK is not set
 # CONFIG_XEN_IBT is not set
 # CONFIG_GRANT_TABLE is not set
--
generated by git-patchbot for /home/xen/git/xen.git#staging



 


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