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3499ba8198
For a while, event channel notification via the PCI platform device has been broken, because we attempt to communicate with xenstore before we even have notifications working, with the xs_reset_watches() call in xs_init(). We tend to get away with this on Xen versions below 4.0 because we avoid calling xs_reset_watches() anyway, because xenstore might not cope with reading a non-existent key. And newer Xen *does* have the vector callback support, so we rarely fall back to INTX/GSI delivery. To fix it, clean up a bit of the mess of xs_init() and xenbus_probe() startup. Call xs_init() directly from xenbus_init() only in the !XS_HVM case, deferring it to be called from xenbus_probe() in the XS_HVM case instead. Then fix up the invocation of xenbus_probe() to happen either from its device_initcall if the callback is available early enough, or when the callback is finally set up. This means that the hack of calling xenbus_probe() from a workqueue after the first interrupt, or directly from the PCI platform device setup, is no longer needed. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20210113132606.422794-2-dwmw2@infradead.org Signed-off-by: Juergen Gross <jgross@suse.com> |
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boot | ||
common | ||
configs | ||
crypto | ||
include | ||
kernel | ||
lib | ||
mach-actions | ||
mach-alpine | ||
mach-artpec | ||
mach-asm9260 | ||
mach-aspeed | ||
mach-at91 | ||
mach-axxia | ||
mach-bcm | ||
mach-berlin | ||
mach-clps711x | ||
mach-cns3xxx | ||
mach-davinci | ||
mach-digicolor | ||
mach-dove | ||
mach-ebsa110 | ||
mach-efm32 | ||
mach-ep93xx | ||
mach-exynos | ||
mach-footbridge | ||
mach-gemini | ||
mach-highbank | ||
mach-hisi | ||
mach-imx | ||
mach-integrator | ||
mach-iop32x | ||
mach-ixp4xx | ||
mach-keystone | ||
mach-lpc18xx | ||
mach-lpc32xx | ||
mach-mediatek | ||
mach-meson | ||
mach-milbeaut | ||
mach-mmp | ||
mach-moxart | ||
mach-mstar | ||
mach-mv78xx0 | ||
mach-mvebu | ||
mach-mxs | ||
mach-nomadik | ||
mach-npcm | ||
mach-nspire | ||
mach-omap1 | ||
mach-omap2 | ||
mach-orion5x | ||
mach-oxnas | ||
mach-picoxcell | ||
mach-prima2 | ||
mach-pxa | ||
mach-qcom | ||
mach-rda | ||
mach-realtek | ||
mach-realview | ||
mach-rockchip | ||
mach-rpc | ||
mach-s3c | ||
mach-s5pv210 | ||
mach-sa1100 | ||
mach-shmobile | ||
mach-socfpga | ||
mach-spear | ||
mach-sti | ||
mach-stm32 | ||
mach-sunxi | ||
mach-tango | ||
mach-tegra | ||
mach-u300 | ||
mach-uniphier | ||
mach-ux500 | ||
mach-versatile | ||
mach-vexpress | ||
mach-vt8500 | ||
mach-zx | ||
mach-zynq | ||
mm | ||
net | ||
nwfpe | ||
oprofile | ||
plat-omap | ||
plat-orion | ||
plat-pxa | ||
plat-versatile | ||
probes | ||
tools | ||
vdso | ||
vfp | ||
xen | ||
Kbuild | ||
Kconfig | ||
Kconfig-nommu | ||
Kconfig.assembler | ||
Kconfig.debug | ||
Makefile |