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Revision 32ffa4f71e10009498ae6b54da65ab316db967bd authored by Axel Rasmussen on 19 May 2021, 20:03:33 UTC, committed by Paolo Bonzini on 27 May 2021, 11:45:55 UTC 
KVM: selftests: compute correct demand paging size
 
This is a preparatory commit needed before we can use different kinds of
backing pages for guest memory.

Previously, we used perf_test_args.host_page_size, which is the host's
native page size (commonly 4K). For VM_MEM_SRC_ANONYMOUS this turns out
to be okay, but in a follow-up commit we want to allow using different
kinds of backing memory.

Take VM_MEM_SRC_ANONYMOUS_HUGETLB for example. Without this change, if
we used that backing page type, when we issued a UFFDIO_COPY ioctl we'd
only do so with 4K, rather than the full 2M of a backing hugepage. In
this case, UFFDIO_COPY returns -EINVAL (__mcopy_atomic_hugetlb checks
the size).

Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Message-Id: <20210519200339.829146-5-axelrasmussen@google.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 parent 25408e5
Raw File
ci_hdrc_imx.h 
/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright 2012 Freescale Semiconductor, Inc.
 */

#ifndef __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H
#define __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H

struct imx_usbmisc_data {
	struct device *dev;
	int index;

	unsigned int disable_oc:1; /* over current detect disabled */

	/* true if over-current polarity is active low */
	unsigned int oc_pol_active_low:1;

	/* true if dt specifies polarity */
	unsigned int oc_pol_configured:1;

	unsigned int pwr_pol:1; /* power polarity */
	unsigned int evdo:1; /* set external vbus divider option */
	unsigned int ulpi:1; /* connected to an ULPI phy */
	unsigned int hsic:1; /* HSIC controlller */
	unsigned int ext_id:1; /* ID from exteranl event */
	unsigned int ext_vbus:1; /* Vbus from exteranl event */
	struct usb_phy *usb_phy;
	enum usb_dr_mode available_role; /* runtime usb dr mode */
	int emp_curr_control;
	int dc_vol_level_adjust;
};

int imx_usbmisc_init(struct imx_usbmisc_data *data);
int imx_usbmisc_init_post(struct imx_usbmisc_data *data);
int imx_usbmisc_set_wakeup(struct imx_usbmisc_data *data, bool enabled);
int imx_usbmisc_hsic_set_connect(struct imx_usbmisc_data *data);
int imx_usbmisc_hsic_set_clk(struct imx_usbmisc_data *data, bool on);
int imx_usbmisc_charger_detection(struct imx_usbmisc_data *data, bool connect);

#endif /* __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H */
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