#undef TRACE_SYSTEM
#define TRACE_SYSTEM vsock

#if !defined(_TRACE_VSOCK_VIRTIO_TRANSPORT_COMMON_H) || \
    defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_VSOCK_VIRTIO_TRANSPORT_COMMON_H

#include <linux/tracepoint.h>

TRACE_DEFINE_ENUM(VIRTIO_VSOCK_TYPE_STREAM);

#define show_type(val) \
	__print_symbolic(val, { VIRTIO_VSOCK_TYPE_STREAM, "STREAM" })

TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_INVALID);
TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_REQUEST);
TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_RESPONSE);
TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_RST);
TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_SHUTDOWN);
TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_RW);
TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_CREDIT_UPDATE);
TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_CREDIT_REQUEST);

#define show_op(val) \
	__print_symbolic(val, \
			 { VIRTIO_VSOCK_OP_INVALID, "INVALID" }, \
			 { VIRTIO_VSOCK_OP_REQUEST, "REQUEST" }, \
			 { VIRTIO_VSOCK_OP_RESPONSE, "RESPONSE" }, \
			 { VIRTIO_VSOCK_OP_RST, "RST" }, \
			 { VIRTIO_VSOCK_OP_SHUTDOWN, "SHUTDOWN" }, \
			 { VIRTIO_VSOCK_OP_RW, "RW" }, \
			 { VIRTIO_VSOCK_OP_CREDIT_UPDATE, "CREDIT_UPDATE" }, \
			 { VIRTIO_VSOCK_OP_CREDIT_REQUEST, "CREDIT_REQUEST" })

TRACE_EVENT(virtio_transport_alloc_pkt,
	TP_PROTO(
		 __u32 src_cid, __u32 src_port,
		 __u32 dst_cid, __u32 dst_port,
		 __u32 len,
		 __u16 type,
		 __u16 op,
		 __u32 flags
	),
	TP_ARGS(
		src_cid, src_port,
		dst_cid, dst_port,
		len,
		type,
		op,
		flags
	),
	TP_STRUCT__entry(
		__field(__u32, src_cid)
		__field(__u32, src_port)
		__field(__u32, dst_cid)
		__field(__u32, dst_port)
		__field(__u32, len)
		__field(__u16, type)
		__field(__u16, op)
		__field(__u32, flags)
	),
	TP_fast_assign(
		__entry->src_cid = src_cid;
		__entry->src_port = src_port;
		__entry->dst_cid = dst_cid;
		__entry->dst_port = dst_port;
		__entry->len = len;
		__entry->type = type;
		__entry->op = op;
		__entry->flags = flags;
	),
	TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x",
		  __entry->src_cid, __entry->src_port,
		  __entry->dst_cid, __entry->dst_port,
		  __entry->len,
		  show_type(__entry->type),
		  show_op(__entry->op),
		  __entry->flags)
);

TRACE_EVENT(virtio_transport_recv_pkt,
	TP_PROTO(
		 __u32 src_cid, __u32 src_port,
		 __u32 dst_cid, __u32 dst_port,
		 __u32 len,
		 __u16 type,
		 __u16 op,
		 __u32 flags,
		 __u32 buf_alloc,
		 __u32 fwd_cnt
	),
	TP_ARGS(
		src_cid, src_port,
		dst_cid, dst_port,
		len,
		type,
		op,
		flags,
		buf_alloc,
		fwd_cnt
	),
	TP_STRUCT__entry(
		__field(__u32, src_cid)
		__field(__u32, src_port)
		__field(__u32, dst_cid)
		__field(__u32, dst_port)
		__field(__u32, len)
		__field(__u16, type)
		__field(__u16, op)
		__field(__u32, flags)
		__field(__u32, buf_alloc)
		__field(__u32, fwd_cnt)
	),
	TP_fast_assign(
		__entry->src_cid = src_cid;
		__entry->src_port = src_port;
		__entry->dst_cid = dst_cid;
		__entry->dst_port = dst_port;
		__entry->len = len;
		__entry->type = type;
		__entry->op = op;
		__entry->flags = flags;
		__entry->buf_alloc = buf_alloc;
		__entry->fwd_cnt = fwd_cnt;
	),
	TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x "
		  "buf_alloc=%u fwd_cnt=%u",
		  __entry->src_cid, __entry->src_port,
		  __entry->dst_cid, __entry->dst_port,
		  __entry->len,
		  show_type(__entry->type),
		  show_op(__entry->op),
		  __entry->flags,
		  __entry->buf_alloc,
		  __entry->fwd_cnt)
);

#endif /* _TRACE_VSOCK_VIRTIO_TRANSPORT_COMMON_H */

#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE vsock_virtio_transport_common

/* This part must be outside protection */
#include <trace/define_trace.h>
alue='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt;</td><td class='right'>2017-02-01 17:45:02 +0000</td></tr>
<tr><th>committer</th><td>Ingo Molnar &lt;mingo@kernel.org&gt;</td><td class='right'>2017-02-01 21:17:49 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211/aes_gcm.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>c8f325a59cfc718d13a50fbc746ed9b415c25e92</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/mac80211/aes_gcm.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>d53fbdac9d0781e39a13b2ac6b2bd258cf3b4140</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/mac80211/aes_gcm.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>net/mac80211/aes_gcm.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211/aes_gcm.h?id=bf29bddf0417a4783da3b24e8c9e017ac649326f'>bf29bddf0417a4783da3b24e8c9e017ac649326f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/mac80211/aes_gcm.h?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92&amp;id2=bf29bddf0417a4783da3b24e8c9e017ac649326f'>diff</a>)</td></tr></table>
<div class='commit-subject'>efi/fdt: Avoid FDT manipulation after ExitBootServices()</div><div class='commit-msg'>Some AArch64 UEFI implementations disable the MMU in ExitBootServices(),
after which unaligned accesses to RAM are no longer supported.

Commit:

  abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel")

fixed an issue in the memory map handling of the stub FDT code, but
inadvertently created an issue with such firmware, by moving some
of the FDT manipulation to after the invocation of ExitBootServices().

Given that the stub's libfdt implementation uses the ordinary, accelerated
string functions, which rely on hardware handling of unaligned accesses,
manipulating the FDT with the MMU off may result in alignment faults.

So fix the situation by moving the update_fdt_memmap() call into the
callback function invoked by efi_exit_boot_services() right before it
calls the ExitBootServices() UEFI service (which is arguably a better
place for it anyway)

Note that disabling the MMU in ExitBootServices() is not compliant with
the UEFI spec, and carries great risk due to the fact that switching from
cached to uncached memory accesses halfway through compiler generated code
(i.e., involving a stack) can never be done in a way that is architecturally
safe.

Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel")
Signed-off-by: Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt;
Tested-by: Riku Voipio &lt;riku.voipio@linaro.org&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Cc: mark.rutland@arm.com
Cc: linux-efi@vger.kernel.org
Cc: matt@codeblueprint.co.uk
Cc: leif.lindholm@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>Diffstat</a> (limited to 'net/mac80211/aes_gcm.h')</div><table summary='diffstat' class='diffstat'>