[PATCH 7/7] x86/hap: Increase the number of initial mempool_size to 1024 pages

["Petr Beneš" <w1benny@xxxxxxxxx>]

From: Petr Beneš <w1benny@xxxxxxxxx>

This change anticipates scenarios where `max_altp2m` is set to its maximum
supported value (i.e., 512), ensuring sufficient memory is allocated upfront
to accommodate all altp2m tables without initialization failure.

Signed-off-by: Petr Beneš <w1benny@xxxxxxxxx>
---
 tools/tests/paging-mempool/test-paging-mempool.c | 2 +-
 xen/arch/x86/mm/hap/hap.c                        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/tests/paging-mempool/test-paging-mempool.c 
b/tools/tests/paging-mempool/test-paging-mempool.c
index 1ebc13455a..91b06fa0cf 100644
--- a/tools/tests/paging-mempool/test-paging-mempool.c
+++ b/tools/tests/paging-mempool/test-paging-mempool.c
@@ -35,7 +35,7 @@ static struct xen_domctl_createdomain create = {
 
 static uint64_t default_mempool_size_bytes =
 #if defined(__x86_64__) || defined(__i386__)
-    256 << 12; /* Only x86 HAP for now.  x86 Shadow needs more work. */
+    1024 << 12; /* Only x86 HAP for now.  x86 Shadow needs more work. */
 #elif defined (__arm__) || defined(__aarch64__)
     16 << 12;
 #endif
diff --git a/xen/arch/x86/mm/hap/hap.c b/xen/arch/x86/mm/hap/hap.c
index 7aff5fa664..fab7e256a4 100644
--- a/xen/arch/x86/mm/hap/hap.c
+++ b/xen/arch/x86/mm/hap/hap.c
@@ -468,7 +468,7 @@ int hap_enable(struct domain *d, u32 mode)
     if ( old_pages == 0 )
     {
         paging_lock(d);
-        rv = hap_set_allocation(d, 256, NULL);
+        rv = hap_set_allocation(d, 1024, NULL);
         if ( rv != 0 )
         {
             hap_set_allocation(d, 0, NULL);
-- 
2.34.1