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authorRichard Henderson <richard.henderson@linaro.org>2024-07-12 09:53:22 -0700
committerRichard Henderson <richard.henderson@linaro.org>2024-07-12 09:53:22 -0700
commit37fbfda8f4145ba1700f63f0cb7be4c108d545de (patch)
tree037f6ff5fccf8e6d5c219019f1c441cbfe3ed78c /hw/xen/xen-mapcache.c
parentba79ef143fbdf6a0b53cd48490ba1daa9014be60 (diff)
parent872cb9cced796e75d4f719c31d70ed5fd629efca (diff)
downloadfocaccia-qemu-37fbfda8f4145ba1700f63f0cb7be4c108d545de.tar.gz
focaccia-qemu-37fbfda8f4145ba1700f63f0cb7be4c108d545de.zip
Merge tag 'edgar/xen-queue-2024-07-12.for-upstream' of https://gitlab.com/edgar.iglesias/qemu into staging
Edgars Xen queue.

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# gpg: Signature made Thu 11 Jul 2024 03:20:27 PM PDT
# gpg:                using RSA key AC44FEDC14F7F1EBEDBF415129C596780F6BCA83
# gpg: Good signature from "Edgar E. Iglesias (Xilinx key) <edgar.iglesias@xilinx.com>" [unknown]
# gpg:                 aka "Edgar E. Iglesias <edgar.iglesias@gmail.com>" [full]

* tag 'edgar/xen-queue-2024-07-12.for-upstream' of https://gitlab.com/edgar.iglesias/qemu:
  xen: mapcache: Fix unmapping of first entries in buckets
  physmem: Bail out qemu_ram_block_from_host() for invalid ram addrs
  MAINTAINERS: add Edgar as Xen maintainer

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'hw/xen/xen-mapcache.c')
-rw-r--r--hw/xen/xen-mapcache.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
index 5f23b0adbe..18ba7b1d8f 100644
--- a/hw/xen/xen-mapcache.c
+++ b/hw/xen/xen-mapcache.c
@@ -597,7 +597,17 @@ static void xen_invalidate_map_cache_entry_unlocked(MapCache *mc,
         pentry->next = entry->next;
         g_free(entry);
     } else {
-        memset(entry, 0, sizeof *entry);
+        /*
+         * Invalidate mapping but keep entry->next pointing to the rest
+         * of the list.
+         *
+         * Note that lock is already zero here, otherwise we don't unmap.
+         */
+        entry->paddr_index = 0;
+        entry->vaddr_base = NULL;
+        entry->valid_mapping = NULL;
+        entry->flags = 0;
+        entry->size = 0;
     }
 }