#ifndef __NETNS_XFRM_H
#define __NETNS_XFRM_H

#include <linux/list.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include <linux/xfrm.h>
#include <net/dst_ops.h>
#include <net/flowcache.h>

struct ctl_table_header;

struct xfrm_policy_hash {
	struct hlist_head	__rcu *table;
	unsigned int		hmask;
	u8			dbits4;
	u8			sbits4;
	u8			dbits6;
	u8			sbits6;
};

struct xfrm_policy_hthresh {
	struct work_struct	work;
	seqlock_t		lock;
	u8			lbits4;
	u8			rbits4;
	u8			lbits6;
	u8			rbits6;
};

struct netns_xfrm {
	struct list_head	state_all;
	/*
	 * Hash table to find appropriate SA towards given target (endpoint of
	 * tunnel or destination of transport mode) allowed by selector.
	 *
	 * Main use is finding SA after policy selected tunnel or transport
	 * mode. Also, it can be used by ah/esp icmp error handler to find
	 * offending SA.
	 */
	struct hlist_head	__rcu *state_bydst;
	struct hlist_head	__rcu *state_bysrc;
	struct hlist_head	__rcu *state_byspi;
	unsigned int		state_hmask;
	unsigned int		state_num;
	struct work_struct	state_hash_work;

	struct list_head	policy_all;
	struct hlist_head	*policy_byidx;
	unsigned int		policy_idx_hmask;
	struct hlist_head	policy_inexact[XFRM_POLICY_MAX];
	struct xfrm_policy_hash	policy_bydst[XFRM_POLICY_MAX];
	unsigned int		policy_count[XFRM_POLICY_MAX * 2];
	struct work_struct	policy_hash_work;
	struct xfrm_policy_hthresh policy_hthresh;


	struct sock		*nlsk;
	struct sock		*nlsk_stash;

	u32			sysctl_aevent_etime;
	u32			sysctl_aevent_rseqth;
	int			sysctl_larval_drop;
	u32			sysctl_acq_expires;
#ifdef CONFIG_SYSCTL
	struct ctl_table_header	*sysctl_hdr;
#endif

	struct dst_ops		xfrm4_dst_ops;
#if IS_ENABLED(CONFIG_IPV6)
	struct dst_ops		xfrm6_dst_ops;
#endif
	spinlock_t xfrm_state_lock;
	spinlock_t xfrm_policy_lock;
	struct mutex xfrm_cfg_mutex;

	/* flow cache part */
	struct flow_cache	flow_cache_global;
	atomic_t		flow_cache_genid;
	struct list_head	flow_cache_gc_list;
	atomic_t		flow_cache_gc_count;
	spinlock_t		flow_cache_gc_lock;
	struct work_struct	flow_cache_gc_work;
	struct work_struct	flow_cache_flush_work;
	struct mutex		flow_flush_sem;
};

#endif
d13a50fbc746ed9b415c25e92'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/rdma/iw_portmap.h?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/rdma/iw_portmap.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/rdma?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>rdma</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/rdma/iw_portmap.h?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>iw_portmap.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='c8f325a59cfc718d13a50fbc746ed9b415c25e92'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='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/include/rdma/iw_portmap.h?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>c8f325a59cfc718d13a50fbc746ed9b415c25e92</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/rdma/iw_portmap.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/?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>d53fbdac9d0781e39a13b2ac6b2bd258cf3b4140</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/rdma/iw_portmap.h?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>include/rdma/iw_portmap.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/rdma/iw_portmap.h?h=nds-private-remove&amp;id=bf29bddf0417a4783da3b24e8c9e017ac649326f'>bf29bddf0417a4783da3b24e8c9e017ac649326f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/rdma/iw_portmap.h?h=nds-private-remove&amp;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/?h=nds-private-remove&amp;id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>Diffstat</a> (limited to 'include/rdma/iw_portmap.h')</div><table summary='diffstat' class='diffstat'>