From 4d7be85e730bc7f46ec5433c425733c4b65a90ed Mon Sep 17 00:00:00 2001
From: Merry <git@mary.rs>
Date: Sun, 1 Jan 2023 11:14:44 +0000
Subject: host_memory: Allocate virtual_base with MAP_NORESERVE

Specify that we do not require swap to be reserved for this address range;
allow overcommitting.
---
 src/common/host_memory.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/common')

diff --git a/src/common/host_memory.cpp b/src/common/host_memory.cpp
index 909f6cf3f..4a67f77b2 100644
--- a/src/common/host_memory.cpp
+++ b/src/common/host_memory.cpp
@@ -393,8 +393,8 @@ public:
         }
 
         // Virtual memory initialization
-        virtual_base = static_cast<u8*>(
-            mmap(nullptr, virtual_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
+        virtual_base = static_cast<u8*>(mmap(nullptr, virtual_size, PROT_NONE,
+                                             MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0));
         if (virtual_base == MAP_FAILED) {
             LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
             throw std::bad_alloc{};
-- 
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