[xen master] libxl/ACPI: don't hard-code guest page size

[patchbot@xxxxxxx]

commit 4e0b1adff0c14919c64fb5626d47650ba4eb4ce7
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Nov 26 11:24:56 2024 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Nov 26 11:24:56 2024 +0100

    libxl/ACPI: don't hard-code guest page size
    
    We have libxl_ctxt.page_size for this purpose; use it to eliminate a
    latent buffer overrun.
    
    Fixes: 14c0d328da2b ("libxl/acpi: Build ACPI tables for HVMlite guests")
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 tools/libs/light/libxl_x86_acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/libs/light/libxl_x86_acpi.c 
b/tools/libs/light/libxl_x86_acpi.c
index 2574ce2553..378524aeef 100644
--- a/tools/libs/light/libxl_x86_acpi.c
+++ b/tools/libs/light/libxl_x86_acpi.c
@@ -218,7 +218,7 @@ int libxl__dom_load_acpi(libxl__gc *gc,
         dom->acpi_modules[0].guest_addr_out = 0x100000 - 64;
 
     dom->acpi_modules[1].data = (void *)config.infop;
-    dom->acpi_modules[1].length = 4096;
+    dom->acpi_modules[1].length = libxl_ctxt.page_size;
     dom->acpi_modules[1].guest_addr_out = ACPI_INFO_PHYSICAL_ADDRESS;
 
     dom->acpi_modules[2].data = libxl_ctxt.buf;
--
generated by git-patchbot for /home/xen/git/xen.git#master