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From c3d30392ea7f29823de3b4514ce3b75d7254ee58 Mon Sep 17 00:00:00 2001
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From: Gary R Hook <ghook@redhat.com>
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Date: Wed, 10 Apr 2019 00:08:02 +0100
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Subject: [PATCH 2/5] memory: Fix the memory region type assignment order
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RH-Author: Gary R Hook <ghook@redhat.com>
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Message-id: <20190410000803.1744-2-ghook@redhat.com>
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Patchwork-id: 85543
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O-Subject: [RHEL-8.1 virt 1/2] memory: Fix the memory region type assignment order
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Bugzilla: 1667249
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RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Alex Williamson <alex.williamson@redhat.com>
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BZ: 1667249
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Branch: rhel-8.1.0
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1667249
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Upstream Status: 4.0.0-rc1
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Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=20980582
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Conflicts: None
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commit 2ddb89b00f947f785c9ca6742f28f954e3b75e62
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Author: Singh, Brijesh <brijesh.singh@amd.com>
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Date: Mon Feb 4 22:23:39 2019 +0000
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memory: Fix the memory region type assignment order
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Currently, a callback registered through the RAMBlock notifier
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is not able to get the memory region type (i.e callback is not
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able to use memory_region_is_ram_device function). This is
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because mr->ram assignment happens _after_ the memory is allocated
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whereas the callback is executed during allocation.
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Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1667249
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Suggested-by: Alex Williamson <alex.williamson@redhat.com>
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Cc: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
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Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
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Message-Id: <20190204222322.26766-2-brijesh.singh@amd.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Cc: Paolo Bonzini <pbonzini@redhat.com>
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Cc: qemu-devel@nongnu.org
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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memory.c | 9 ++++++++-
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1 file changed, 8 insertions(+), 1 deletion(-)
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diff --git a/memory.c b/memory.c
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index 4974f97..04ff5e9 100644
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--- a/memory.c
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+++ b/memory.c
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@@ -1631,10 +1631,17 @@ void memory_region_init_ram_device_ptr(MemoryRegion *mr,
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uint64_t size,
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void *ptr)
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{
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- memory_region_init_ram_ptr(mr, owner, name, size, ptr);
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+ memory_region_init(mr, owner, name, size);
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+ mr->ram = true;
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+ mr->terminates = true;
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mr->ram_device = true;
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mr->ops = &ram_device_mem_ops;
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mr->opaque = mr;
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+ mr->destructor = memory_region_destructor_ram;
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+ mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
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+ /* qemu_ram_alloc_from_ptr cannot fail with ptr != NULL. */
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+ assert(ptr != NULL);
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+ mr->ram_block = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_fatal);
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}
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void memory_region_init_alias(MemoryRegion *mr,
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--
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1.8.3.1
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