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authorGerd Hoffmann <kraxel@redhat.com>2020-05-29 09:39:55 +0200
committerGerd Hoffmann <kraxel@redhat.com>2020-06-17 14:24:16 +0200
commit3235936e306b5eae6291907e4d675f226707fd14 (patch)
tree52ae8fc2daff105c50535b8054c5e8f2f6ea3ff5 /hw
parente289655cea93bd50856a0896e2d49e5c7ed10c3b (diff)
microvm: drop max-ram-below-4g support
Not useful for microvm and allows users to shoot themself into the foot (make ram + mmio overlap). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200529073957.8018-3-kraxel@redhat.com
Diffstat (limited to 'hw')
-rw-r--r--hw/i386/microvm.c19
1 files changed, 0 insertions, 19 deletions
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 44f940813b..5e931975a0 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -173,25 +173,6 @@ static void microvm_memory_init(MicrovmMachineState *mms)
ram_addr_t lowmem = 0xc0000000; /* 3G */
int i;
- /*
- * Handle the machine opt max-ram-below-4g. It is basically doing
- * min(qemu limit, user limit).
- */
- if (!x86ms->max_ram_below_4g) {
- x86ms->max_ram_below_4g = 4 * GiB;
- }
- if (lowmem > x86ms->max_ram_below_4g) {
- lowmem = x86ms->max_ram_below_4g;
- if (machine->ram_size - lowmem > lowmem &&
- lowmem & (1 * GiB - 1)) {
- warn_report("There is possibly poor performance as the ram size "
- " (0x%" PRIx64 ") is more then twice the size of"
- " max-ram-below-4g (%"PRIu64") and"
- " max-ram-below-4g is not a multiple of 1G.",
- (uint64_t)machine->ram_size, x86ms->max_ram_below_4g);
- }
- }
-
if (machine->ram_size > lowmem) {
x86ms->above_4g_mem_size = machine->ram_size - lowmem;
x86ms->below_4g_mem_size = lowmem;