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From 7cb1c5e1416de9a09180f0930d2a216c77e8cdbd Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
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Date: Thu, 30 Jan 2020 16:01:10 +0000
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Subject: [PATCH 07/15] tpm-ppi: page-align PPI RAM
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com>
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Message-id: <20200130160110.126086-1-marcandre.lureau@redhat.com>
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Patchwork-id: 93600
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O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH] tpm-ppi: page-align PPI RAM
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Bugzilla: 1787444
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RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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post-copy migration fails on destination with error such as:
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2019-12-26T10:22:44.714644Z qemu-kvm: ram_block_discard_range:
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Unaligned start address: 0x559d2afae9a0
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Use qemu_memalign() to constrain the PPI RAM memory alignment.
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
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Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
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Message-id: 20200103074000.1006389-3-marcandre.lureau@redhat.com
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BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1787444
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Brew: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=26122940
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(cherry picked from commit 71e415c8a75c130875f14d6b2136825789feb297)
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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 hw/tpm/tpm_ppi.c | 3 ++-
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 1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/hw/tpm/tpm_ppi.c b/hw/tpm/tpm_ppi.c
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index ff31459..6d9c1a3 100644
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--- a/hw/tpm/tpm_ppi.c
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+++ b/hw/tpm/tpm_ppi.c
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@@ -43,7 +43,8 @@ void tpm_ppi_reset(TPMPPI *tpmppi)
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 void tpm_ppi_init(TPMPPI *tpmppi, struct MemoryRegion *m,
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                   hwaddr addr, Object *obj)
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 {
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-    tpmppi->buf = g_malloc0(HOST_PAGE_ALIGN(TPM_PPI_ADDR_SIZE));
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+    tpmppi->buf = qemu_memalign(qemu_real_host_page_size,
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+                                HOST_PAGE_ALIGN(TPM_PPI_ADDR_SIZE));
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     memory_region_init_ram_device_ptr(&tpmppi->ram, obj, "tpm-ppi",
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                                       TPM_PPI_ADDR_SIZE, tpmppi->buf);
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     vmstate_register_ram(&tpmppi->ram, DEVICE(obj));
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-- 
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1.8.3.1
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