From cb87ea28ed9e75a41eb456bfcb547b4e6f10e750 Mon Sep 17 00:00:00 2001 From: John Calixto Date: Tue, 26 Apr 2011 18:56:29 -0400 Subject: mmc: core: Add mmc CMD+ACMD passthrough ioctl Allows appropriately-privileged applications to send CMD (normal) and ACMD (application-specific; preceded with CMD55) commands to cards/devices on the mmc bus. This is primarily useful for enabling the security functionality built in to every SD card. It can also be used as a generic passthrough (e.g. to enable virtual machines to control mmc bus devices directly). However, this use case has not been tested rigorously. Generic passthrough testing was only conducted for a few non-security opcodes to prove the feasibility of the passthrough. Since any opcode can be sent using this passthrough, it is very possible to render the card/device unusable. Applications that use this ioctl must have CAP_SYS_RAWIO. Security commands tested on TI PCIxx12 (SDHCI), Sigma Designs SMP8652 SoC, TI OMAP3621/OMAP3630 SoC, Samsung S5PC110 SoC, Qualcomm MSM7200A SoC. Signed-off-by: John Calixto Reviewed-by: Andrei Warkentin Reviewed-by: Arnd Bergmann Signed-off-by: Chris Ball --- include/linux/Kbuild | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/Kbuild') diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 75cf611641e6..ed38527599ee 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -4,6 +4,7 @@ header-y += caif/ header-y += dvb/ header-y += hdlc/ header-y += isdn/ +header-y += mmc/ header-y += nfsd/ header-y += raid/ header-y += spi/ -- cgit v1.2.3